WO2023247894A1

WO2023247894A1 - Hymenoptera trap with non-return concealment screen

Info

Publication number: WO2023247894A1
Application number: PCT/FR2023/050928
Authority: WO
Inventors: Denis JAFFRÉ
Original assignee: Jabeprode
Priority date: 2022-06-22
Filing date: 2023-06-21
Publication date: 2023-12-28
Also published as: FR3136931A1

Abstract

The invention relates to a trap (20) for selectively capturing hymenoptera, comprising a box having a bottom (201) and at least three walls, of which at least two walls each have an opening (22) for the circulation of emanations, each opening (22) for the circulation of emanations has a porous mounting plate (21) covering the opening (22) for the circulation of emanations, said porous mounting plate (21) has a funnel-shaped cross section with a large base and a small base, the small base comprises at least one selective passage orifice (212) and the small base is placed towards the inside of the trap (20), characterized in that the selective trap (20) has a concealment screen (24) placed in front of said at least one selective passage orifice (212) inside said selective trap (20).

Description

DESCRIPTION

TITLE OF THE INVENTION: HYMENOPTERA CAPTURE CAGE WITH ANTI-RETURN SCREEN

The invention relates to an autonomous capture cage for unwanted insects, in particular unwanted hymenoptera such as the species Vespa velutina more commonly called Asian hornet or yellow-legged hornets.

A capture cage for Asian hornets developed by the Applicant, described in WO2019162893, is known from the state of the art.

As explained in this document, the Asian hornet, accidentally imported with Chinese goods in 2004, turns out to be a very invasive pest due to its exponential reproduction mode and its need for meat proteins.

A generalist predator, it impacts many species of useful insects including many pollinators which are prey to this predator. It is in fact destructive of biodiversity and threatens the food chain through its omnipresence in territories with large fluctuations in density.

This hornet is capable of destroying entire apiaries of honey bees in a single season, severely affects beekeeping activity and accelerates the disappearance of beekeepers by ruining their farms.

Asian hornets are social insects and therefore live in colonies. These shelter in cellulose nests and are made up of individuals divided into castes, each playing a defined role in the colony. The queen establishes the colony and then lays eggs. The workers, unfertilized female workers, remove the larvae, provide the colony with food and build the nest. The young queens ensure the dissemination of the species over a radius of nearly 70km/year (source Institute for Research on the Biology of Insects in Tours). The social bond is ensured by a pheromone produced by the founder which is specific to each colony (nest). The phenomenon of "trophallaxis", less developed in the Vespa velutina than in the honey bee, allows the sharing and exchange of food brought to the nest by the workers among all the individuals in the colony. The young queen, who has become "founder", is at the center of the social network of the colony through her production of pheromones allowing its perfect cohesion. The founder having a major role in reproduction, her death ultimately leads to the decline of the colony. All female social Hymenoptera are equipped with a vulnerative system, that is to say a stinger capable of injecting venom, which is painful and sometimes dangerous for humans if the envenomation is severe.

From a biological point of view, Vespa velutina is distinguished from its European cousin Vespa crabro by several traits, morphological nuances and its exclusively diurnal activity.

The nest of Vespa velutina is generally built in the open air, very often at the top of large trees, unlike its European cousin which always establishes its nest in pre-existing cavities, well sheltered from bad weather.

Vespa velutina lives better in an anthropic environment than in the countryside. Its nest is also much more voluminous and populous: it can contain up to 2000 individuals compared to 800 in the Vespa crabro.

Vespa velutina is particularly efficient in hunting because it is very fast and able to hover. This allows it to capture its prey with great efficiency. He takes them to cut them up, leaving only the thorax with which he will make a pellet which he brings back to the nest to feed the larvae.

When a nest of Asian hornets has detected an apiary or a nest of social insects, the presence of the hornets hovering in front of the entrance to the hives stresses the bee colonies which then no longer feed normally: the reserves s become exhausted, queens stop laying eggs and colonies collapse due to lack of food and/or population to maintain sufficient temperature in the colony.

The Asian hornet is therefore a scourge for beekeeping activity.

There is a control technique which allows you to destroy an undiscovered nest by capturing the insect then handling it and applying an attractive and insecticidal product. When it returns to the nest, it contaminates the other hornets (by “Trojan horse” principle). To be implemented, good control is required (because it is necessary to handle them). Trapping consists of the use of devices that contain an attractive bait for hornets, and which keep them captive.

The vast majority of traps, of the “Bottle or bell” type, are not sufficiently effective because the hornet can carry out vertical flights making their escape possible and have the major disadvantage of being insufficiently selective.

By way of illustration US2018/0042212 discloses an insect trap using a bottle and a funnel system which on the one hand lacks selectivity and which on the other hand does not sufficiently diffuse the olfactory scents of a possible bait . A similar principle is found in US 1,386408 which suffers from the same defects (admittedly attenuated). US869556 and WO 2012/001442 disclose cages which do not allow species selectivity. All these traps do not allow Vespa velutina to be captured satisfactorily.

Another curative control technique consists of destroying the nests using significant equipment (telescopic pole, spraying equipment), and good protection, handling of biocides and possible attack by hornets. The electrocution of hornets by an “electric harp” allows the destruction of hornets near hives. All of these methods are curative and do not effectively regulate the species.

In this context, the capture cage disclosed in WO2019162893 made it possible to provide a particularly effective selective capture device, specifically for Asian hornets. However, it has been observed in rare cases that some specimens managed to escape from the cage.

In addition, the ever-increasing influx of people and goods on the planet necessarily generates new contaminations of foreign species impacting the balance of local ecosystems (as is the case of the Asian hornet in Europe). Thus, contamination by new species of harmful exogenous hymenoptera have been reported for example in Canada and the USA (in particular cases of Vespa mandarinia reported). Consequently, it will be necessary in the future to quickly set up traps targeting unexpected species.

The object of the present invention is therefore to provide a technical solution responding to these various difficulties. SUMMARY OF THE INVENTION

An object of the present invention relates to a selective cage for capturing hymenoptera comprising a box having a bottom and at least three walls, at least two walls of which each have an opening for the circulation of scents, each opening for circulation of scents comprises a plate porous covering the effluvia circulation opening, said porous plate comprises a funnel-shaped section having a large base and a small base, the small base comprises at least one selective passage orifice and the small base is placed towards the inside of the capture cage, characterized in that said selective capture cage comprises a privacy screen placed in front of said at least one selective passage orifice inside said selective capture cage.

It has in fact been observed that the addition of a privacy screen prevents insects from escaping from the cage by passing through the selective passage opening.

By “view screen” is meant according to the present invention a physical separation, such as a screen or a flap, thus creating a visual concealment of the orifice, seen from inside the cage opposite said orifice. . The privacy screen is configured to allow the introduction of insects via the selective passage opening into the capture cage. Advantageously, the privacy screen is configured so as to create a space between said orifice and the privacy screen or fixed in a movable manner, like a flap, to leave a communication space between the exterior of the cage and the interior of the cage via the selective passage orifice.

Surprisingly, it was found that although the screen made it more difficult for insects to enter the cage, the screen did not appear to be a significant obstacle that could deter insects from entering the trap. . Thus, even if the privacy screen can create a clutter of insects at the entrance to the cage, it has been found that the final capture yield is better with the privacy screen according to the present invention than without it. This appeared surprising, because one would have expected that the difficulty of passage caused by the addition of the privacy screen could have dissuaded the insects from entering the cage. However, this is not the case, on the contrary. Furthermore, the invention relates to a privacy screen as currently defined for a selective passage orifice of a hymenoptera capture cage.

The invention therefore relates to a privacy screen for a selective passage orifice of a hymenoptera capture cage conforming to the present invention comprising:

- a wall of size and shape suitable for covering said passage orifice with one of its surfaces;

- a means of offset from the wall; And

- a means of fixing the privacy screen to said hymenoptera capture cage; characterized in that the wall offset means is adapted to offset said wall of the privacy screen to create a visual occultation of the orifice, seen from the inside of the cage opposite said orifice, and configured to allow the introduction of insects via the selective passage orifice into the capture cage.

Indeed, in one embodiment, the privacy screen alone is offered as an additional accessory to a trap already in operation.

The present invention also relates to a funnel for a capture cage as described herein, said funnel ending on its thinnest side with a base having at least one selective passage orifice, the passage orifice comprises at least one limiting section of passage calibrated on the thickness of the thorax of a hymenoptera, in particular on the thorax of a hymenoptera queen, preferably characterized in that a privacy screen is placed in front of said at least one selective passage orifice on the side finer of the funnel or in that said funnel comprises at least one means of receiving and/or fixing a privacy screen according to the invention.

Preferably, said at least one reception and/or fixing means is a mechanical means, for example selected from the list consisting of a depression, an opening, a clip, a rail, a notch, a press button and a closure. flash.

In the context of the present invention, the term "funnel" means a trap system, or equivalent (eg in the shape of a funnel for pouring a liquid), making it possible to channel insects towards the entrance (passage orifice) in the capture cage. It can therefore in theory be of any form as long as it fulfills this function. Preferably, the funnel the invention is of general frustoconical shape, for example of circular, oval or polygonal section such as a triangle, a square, a rectangle, a diamond, a pentagon, a hexagon, a heptagon or even an octagon.

Indeed, a user can thus acquire a funnel according to the present invention and manufacture the rest of the trap if desired.

Alternatively, a user already in possession of a trap according to the present invention may wish to replace parts of this trap to change the selectivity of the trap. Thus, an object of the present invention relates to a selective cage for capturing hymenoptera comprising a box having a bottom and at least three walls of which at least two walls each include an opening for the circulation of scents, each opening for circulation of scents comprises a porous plate covering the effluvia circulation opening, said porous plate comprises a funnel-shaped section having a large base and a small base, the small base comprises at least one selective passage orifice and the small base is placed inwards of the capture cage, characterized in that said cage is configured to be modular, that is to say include different replaceable and combinable modules, depending on the hymenoptera targeted.

Thus, the orifice(s) of the funnel of the replaceable base thereof can be calibrated to the thickness of the thorax of a specific species of hymenoptera, for example chosen from Vespa affinis, Vespa analis, Vespa basalis, Vespa bellicosa, Vespa bicolor, Vespa binghami, Vespa crabro, Vespa ducalis, Vespa dybowskii, Vespa fervida, Vespa fumida, Vespa luctuosa, Vespa mandarinia, Vespa mocsaryana, Vespa multimaculata, Vespa orientalis, Vespa philippinensis, Vespa simillima, Vespa sorror, Vespa tropica, Vespa velutina, Vespa vivax, preferably Vespa velutina, Vespa mandarinia, Vespa orientalis.

The advantage of such a capture cage is the possibility of quickly changing its selectivity by acquiring the modules necessary for modifying the capture cage. Preferably, it is envisaged to compartmentalize the capture cage according to the species targeted in each compartment, by providing at least one removable partition.

The present invention also relates to a funnel for a modular selective cage for capturing hymenoptera as described above, said funnel ending on its thinnest side in a base having at least one selective passage orifice, the selective passage orifice comprises at least one limiting passage section calibrated to the thickness of the thorax of a hymenoptera, in particular on the thorax of a hymenoptera queen, characterized in that at least one element of said funnel is configured to be removed and replaced by another element, for example the element is said base having at least one selective passage orifice . Thus, the funnel and/or said base are configured so that the base can be removed and replaced by another base having at least one selective passage orifice of different size and/or shape from the selective passage orifice. previously in place.

Another object of the present invention relates to a kit for manufacturing a capture cage as described presently, characterized in that said kit comprises a funnel according to the invention and at least one of the following options:

- a box with a bottom;

- at least three walls, preferably four walls, at least two walls of which each have an opening for attaching a funnel as described above;

- a privacy screen according to the present invention;

- a lid ; and or

- means for making the capture cage modular, such as at least one reversible attachment means such as a slide for replacing at least one element of the capture cage by removing and replacing said element by sliding (for example the base of the funnel with the selective passage orifice) and/or at least one reversible clip or at least one reversible latch to secure at least temporarily said element in place.

DETAILED DESCRIPTION

Selective hymenoptera capture cage and funnel

Preferably, the selective cage for capturing hymenoptera according to the present invention is characterized in that said at least one selective passage orifice is calibrated on the thickness of the thorax of a species of hymenoptera, for example chosen from Vespa affinis, Vespa analis, Vespa basalis, Vespa bellicosa, Vespa bicolor, Vespa binghami, Vespa crabro, Vespa ducalis, Vespa dybowskii, Vespa fervida, Vespa fumida, Vespa luctuosa, Vespa mandarinia, Vespa mocsaryana, Vespa multimaculata, Vespa orientalis, Vespa philippinensis, Vespa simillima, Vespa sorror, Vespa tropica, Vespa velutina, Vespa vivax, preferably Vespa velutina, Vespa mandar inia , Vespa orientalis.

For example, in the case of a capture cage calibrated to capture a hornet such as the European or Asian hornet, the passage orifice comprises at least one limiting passage section with a dimension between 7.0 and 9, 0mm.

Preferably, in the case of a capture cage calibrated to capture a hornet of common size such as the European or Asian hornet, the passage orifice comprises at least one limiting passage section with a dimension greater than 7.0 mm and less than 8.7 mm, preferably less than 8.5 mm, more preferably less than 8.0 mm, even more preferably less than 7.5 mm, for example less than 7.23 mm.

More preferably, in the case of a capture cage calibrated to capture a hornet of common size such as the European or Asian hornet, the passage orifice comprises at least one limiting passage section of a dimension between 7, 1 and 8.0 mm, preferably between 7.15 and 7.5 mm, more preferably between 7.17 mm and 7.30 mm, even more preferably between 7.18 mm and 7.25 mm, for example between 7.19 mm and 7.23 mm, between 7.20 mm and 7.22 mm, such as 7.21 mm.

For example, in the case of a capture cage calibrated to capture a hornet of the largest known sizes such as the giant hornet "vespa velutina", the passage orifice comprises at least one limiting passage section of one dimension between 10.0 and 18.0 mm, more particularly between 12.0 and 16.0 mm.

Preferably, the modularity of the capture cage calibrated according to the present invention is achieved simply by adapting the cage so that it comprises at least one reversible attachment means, for example at least one slide to replace at least one element of the capture cage by removing and replacing said element by sliding and/or at least one clip or at least one latch to at least temporarily secure said element in place.

Preferably, the capture cage according to the present invention comprises at least one reversible attachment means for the base having at least one selective passage orifice.

Thus, in a particular embodiment, the capture cage is configured not to retain a species of insect other than a hymenoptera, such as a type of honey bee. For example, the cage is provided with at least a second type of orifice, of limiting section smaller in size than at least one selective passage orifice, and of a size large enough to allow the insect other than the hymenoptera to pass through, such as a type of honey bee. The size of the insect other than a hymenoptera is necessarily smaller than that of said hymenoptera so that the cage can be selective (screw on the one hand the selective passage orifice and on the other hand said second type of orifice). In this context, a modular capture cage according to the present invention is particularly interesting because several species of hymenoptera, for example predators of insects other than hymenoptera, such as a type of honey bee, can be targeted by at the same time (several selective passage orifices) or alternately over time. In such a scenario, a privacy screen according to the present invention is also very useful, because it makes it possible to limit the escape of hymenoptera of smaller sizes through the selective passage orifices of larger sizes.

Preferably, the capture cage according to the present invention is characterized by the distance between the large base and the small base of the funnel of between 10 to 15 cm. In a particular embodiment, the height between the large base and the small base of the truncated pyramid is between 10 to 15 cm.

In one embodiment, the box includes a removable cover (having the property of insulating the interior from the exterior at its level).

In one embodiment, the two walls each have an opening facing each other. In one embodiment, the bottom comprises at least one porous part (such as a mesh part) under which it is planned to position bait.

In one embodiment, the porous plate (such as a mesh plate) comprises a flat part of rectangular shape whose length is between 11 and 20 cm and the width is between 7 and 15 cm.

Furthermore, the object of the present invention relates to a funnel for a capture cage as described presently, said funnel ending on its thinnest side with a base having at least one selective passage orifice, characterized in that the The passage orifice comprises at least one limiting passage section of between 7.0 and 9.0 mm, preferably 7.21 mm.

Furthermore, preferably, the capture cage according to the present invention comprises a device for killing hymenoptera, such as a poison enclosure or a lethal agent, or at least one high voltage electric wire as is classically found in mosquito traps.

In one embodiment, the funnel is an integral part of the capture cage, and the funnel alone has the characteristics described above which are applicable to it.

Thus preferably, the funnel according to the present invention is characterized in that the passage orifice has the shape of a rectangle and is calibrated, as explained above (that is to say that the the selective passage orifice comprises at least one limiting passage section calibrated to the thickness of the thorax of a hymenoptera). For example, the length is between 10 and 60 mm, and the width is between 7.0 and 18.0 mm.

More particularly, the length is between 10 and 30 mm, such as 20 mm, and the width is between 7.0 and 9.0 mm, such as 7.21 mm or between 30 and 60 mm, such as 40 mm, and the width is between 10.0 and 18.0 mm, such as 14 mm.

Preferably, the funnel according to the present invention comprises on at least one of these walls at least one orifice allowing at least one species of insect other than a hymenoptera, such as a type of honey bee, to escape from the capture cage. Thus, advantageously, in the capture cage according to the present invention, one of the elements replaced is the funnel. The funnel of the cage thus has both a base having at least one selective passage orifice, the selective passage orifice comprises at least one limiting passage section calibrated to the thickness of the thorax of a hymenoptera, and presents (for example on at least one of the other walls of the funnel) a second type of orifice of limiting section smaller in size to said at least one selective passage orifice, and of a size large enough to let the other insect pass through than the hymenoptera, such as a type of honey bee.

Thus, preferably, the funnel which is replaceable includes the selection characteristics of the species retained in the capture cage. The user thus preferentially uses the cage according to the present invention to target several species of insects, such as hymenoptera.

The addition of at least one privacy screen as currently defined makes it possible to increase selectivity by increasing the role of passage to the outside of the second type of orifice(s).

In a particular embodiment, the funnel according to the present invention is characterized in that it comprises a porous portion whose limiting passage section of the pores is smaller in size than the limiting passage section of the passage orifice.

In particular, the funnel as currently described is characterized in that said funnel has the shape of a truncated pyramid.

Screening

Concerning the privacy screen, this is adapted to be placed in the capture cage according to the present invention, and thus at the fine end of the funnel according to the present invention, opposite the orifice of selective passage. The capture cage and the funnel are preferably provided with at least one privacy screen as described below.

Preferably the privacy screen comprises at least one translucent material. More preferably, the privacy screen is made of a translucent material. Thus, the capture cage according to the present invention (as well as the funnel) is preferably characterized in that the privacy screen is made of a translucent material and/or that said capture cage is configured to be modular. Indeed, the translucent nature of the privacy screen makes escape from the capture cage more difficult: the light from the passage opening no longer makes it possible to distinguish the physical separation of the privacy screen. It has been found that such a privacy screen made of translucent material increases the efficiency of capturing hymenoptera. The modularity of the capture cage as described above, in particular with regard to the base of the funnel including the selective passage orifice, makes it possible to quickly modify the capture cage for targeting insect species (Hymenoptera ) individuals.

Preferably, the privacy screen according to the invention is configured to completely mask said at least one selective passage orifice. Thus, the capture cage according to the present invention (as well as the funnel) is preferably characterized in that the privacy screen is configured to completely mask said at least one selective passage orifice. This prevents light passing through said at least one selective passage orifice from indicating an exit passage to the captured insects.

Preferably, the privacy screen according to the present invention comprises at least two side walls. Thus, the capture cage according to the present invention (as well as the funnel) is preferably characterized in that the privacy screen comprises at least two side walls. The side walls make it possible to restrict the entry passage into the capture cage, which limits the means of exit.

Preferably, the privacy screen according to the present invention has a general parallelepiped shape with an inlet orifice arranged so as to be aligned with the selective passage orifice and an outlet orifice arranged to communicate the passage orifice selective with the inside of the capture cage. Thus, the capture cage according to the present invention is preferably characterized in that the privacy screen has a general parallelepiped shape with an orifice arranged so as to be aligned with the selective passage orifice and an outlet orifice arranged to communicate the selective passage orifice with the interior of the capture cage. As with the addition of side walls, the parallelepiped shape makes it possible to restrict the entry passage into the capture cage, which limits the means of exit. Preferably, the capture cage according to the present invention is characterized in that the outlet orifice is arranged on the privacy screen so as to face the bottom. Thus, when the capture cage is positioned so that its bottom is as close as possible to the ground or even in contact with the ground, the outlet orifice on the privacy screen is arranged so that to escape via this orifice, the hymenoptera are forced to go up vertically in the privacy screen, then pass through the selective passage orifice. It was found that under these conditions none of the targeted hymenoptera trapped were able to escape.

Thus, in a particular embodiment, the inlet orifice and the outlet orifice in the privacy screen are arranged in planes perpendicular to each other.

In one of its embodiments, the invention relates to a privacy screen for a selective passage orifice of a hymenoptera capture cage conforming to the present invention comprising:

- a means of offset from the wall; And

Preferably, the privacy screen according to the present invention comprises a translucent material. Advantageously, the wall of size and shape adapted to cover with one of its surfaces said passage orifice the privacy screen according to the present invention comprises a translucent material. More advantageously, the wall of size and shape adapted to cover with one of its surfaces said passage orifice the privacy screen according to the present invention is made of a translucent material.

Advantageously, the wall offset means comprises a translucent material. More advantageously, the wall offset means is made of a translucent material. More preferably, the privacy screen according to the present invention is made of a translucent material.

Advantageously, the wall of size and shape adapted to cover said passage orifice with one of its surfaces, is configured to completely mask said at least one selective passage orifice.

Preferably, the wall offset means comprises at least two side walls.

In a particular embodiment, the privacy screen has a generally parallelepiped shape with an inlet orifice arranged so as to be aligned with the selective passage orifice and an outlet orifice arranged to communicate the selective passage orifice with the inside of the capture cage, when the privacy screen is placed on said capture cage.

Advantageously, the privacy screen comprises at least one fixing means adapted to attach it in front of said at least one selective passage orifice inside said selective capture cage.

Manufacturing kit

An object of the present invention relates to a kit for manufacturing a funnel as described above, characterized in that said kit comprises:

- a base with a passage orifice as currently defined,

- at least three triangular pieces, preferably four triangular pieces, said triangular pieces being truncated at one of their ends,

- at least one means for fixing said base with said at least three triangular pieces at their truncated end, characterized in that said kit comprises:

- at least one reversible attachment means, for example at least one slide to replace at least one element of said funnel by removing and replacing said element by sliding and/or at least one clip or at least one latch to at least temporarily secure said element in place. A base with a passage orifice, a triangular part can for example constitute such an element; and or

- a privacy screen according to the present invention, as described above. Furthermore, an object of the present invention relates to a kit for a capture cage according to the present invention, characterized in that said kit comprises:

- a box with a bottom,

- at least three walls, preferably four walls, of which at least two walls each have an opening for attaching a funnel as described above,

- a funnel as described above, and

- a lid.

Use

Another object of the present invention relates to the use of a capture cage according to the present invention to capture at least one hymenoptera such as a hornet, preferably a hornet of one of the species chosen from the list consisting of Vespa affinis , Vespa analis, Vespa basalis, Vespa bellicosa, Vespa bicolor, Vespa binghami, Vespa crabro, Vespa ducalis, Vespa dybowskii, Vespa fervida, Vespa fumida, Vespa luctuosa, Vespa mandarinia, Vespa mocsaryana, Vespa multimaculata, Vespa orientalis, Vespa philippinensis, Vespa simillima, Vespa sorror, Vespa tropica, Vespa velutina, Vespa vivax, preferably Vespa velutina, Vespa mandarinia, Vespa orientalis.

Preferably, the invention relates to the use of a capture cage as described presently for capturing the species Vespa mandarinia or the species Vespa velutina (capture of queens: preventive use, and/or capture of workers: curative use). This use is preferably characterized in that at least one bait is inserted into the capture cage, said at least one bait being optionally positioned and protected under a porous part, such as a mesh part. In this embodiment, the use is characterized in that said at least one bait is selected from the list consisting of honeyed waxes, red fruit syrup, dark beer, cider or sweet white wine saturated in sugars to which jam and/or honey can be added, or meat material, for example from fish, crustaceans or shellfish, or one of the mixtures thereof. An example of the implementation of capture cages, in particular on an operation of honey bee hives, consists in the fact that the capture cages are placed, for example, placed on one or more hives and/or away from the hive(s). The type of bait used in the traps is preferably honey-based (in the form of honeyed wax covers from honey extractions for the boxes - possibility of using honey frames for the hives). In the case of a capture cage intended to capture Asian hornets, the characteristics of the passage and selection orifices are then the same as those described in WO2019162893. The addition of the privacy screen according to the invention makes it possible to optimize the efficiency of the capture.

The present invention further relates to the use as described herein, characterized in that islands made up of small sponges are inserted as diffusers of olfactory scents in the capture cage.

FIGURES

We will describe below, by way of non-limiting examples, embodiments of the present invention, with reference to the appended figures in which:

[Fig.1] Figure 1 represents a perspective view of a funnel with privacy screen according to the present invention;

[Fig.2] Figure 2 shows a perspective view of the interior of a capture cage in which a parallelepiped-shaped privacy screen according to the present invention is placed on a funnel;

[Fig.3] Figure 3 represents a perspective view of the interior of a capture cage in which two parallelepiped-shaped privacy screens according to the present invention are respectively placed on two funnels;

[Fig.4] Figure 4 represents a perspective and sectional view of a privacy screen positioned on a porous funnel plate according to the present invention; And

[Fig.5] Figure 5 represents the elements of a kit for a funnel in the shape of a truncated pyramid according to the present invention. In Figure 1, there is shown in perspective a funnel 23 presenting a porous plate 21 allowing the circulation of effluvia, said porous plate 21 comprises a funnel section 23, of truncated pyramid shape 213, having a large base and a small base , the small base comprises at least one selective passage orifice and the small base comprises a privacy screen 24.

The porous plate (such as a mesh plate) 21 is positioned normal to the longitudinal axis of the funnel 23 and allows the circulation of scents and rapid exit of insects that we do not wish to capture, such as only bees, without clutter. The porous plate (such as a mesh plate) 21 comprises a flat part 211 of rectangular shape whose length is between 11 and 20 cm, for example 15 cm and the width is between 7 and 15 cm, for example 10 cm .

Figure 2 represents a perspective view of the interior of a capture cage 20 according to the invention, comprising a funnel 23 with a privacy screen 24. Here the privacy screen 24 has a parallelepiped shape. The capture cage 20 comprises a bottom 201 and an opening 22. The funnel 23 is fixed (for example temporarily) on the opening 22 to cover it completely.

Figure 3 represents a perspective view of the interior of a capture cage 20 according to the invention, comprising two funnels 23, one of which has a privacy screen 24. On the other funnel 23, devoid of screen view 24, it can be seen the small base 212 includes at least one selective passage orifice. A privacy screen 24 can be added to this funnel simply by sliding it onto the small base 212, as shown in Figure 5.

Figure 4 is an enlarged perspective view of the end of a funnel presenting a privacy screen 24. This privacy screen 24 is placed on the small base 212, which is fixed (possibly reversibly - not shown here) to a porous plate 21. The privacy screen 24 preferably comprises two side walls 25 and an upper wall 26. The privacy screen 24 is preferably of a generally parallelepiped shape with rounded corners (which prevents insects from easily getting there maintain), and/or is preferably translucent.

Figure 5 represents the elements of a kit for a funnel in the shape of a truncated pyramid according to the present invention, particularly well suited to the capture of Vespa velutina. Thus, in one embodiment this kit comprises a base with a passage orifice (212) of rectangular shape of width L (here the limiting section can be 7.21 mm) and of length L (for example 20 mm) . Truncated triangular pieces linked to each other by hooking means (I), make it possible to define a funnel. The attachment means can be of the male or female type as shown, allowing them to be attached (eg by reversible clips - not shown) to one another. The triangular part preferably comprises male and/or female attachment means. The funnel is preferably inserted into a box to form a cage according to the present invention by hooking means (K). The box advantageously comprises a hooking means complementary to the hook (K), for example functioning similar to the hook (I) These truncated triangular parts include a means for fixing the base, such as a notch (E ). The base here is generally rectangular in shape, but can also be of another shape (triangular, pentagonal, hexagonal, etc.) depending on the number of truncated triangular pieces surrounding it. Preferably, the base is of generally rectangular shape, and requires 4 truncated triangular pieces to form the funnel (pyramid trunk). The pores of the porous plate are here rectangles with rounded corners (here an entire side is rounded), the length of which is preferably 11 mm and the width is preferably 5 mm. Indeed, it has been observed that the exit of small insects is facilitated by such patterns.

Claims

1. Selective capture cage (20) of hymenoptera comprising a box having a bottom (201) and at least three walls, at least two walls of which each have an opening for the circulation (22) of the effluvia, each circulation opening (22 ) of the effluvia comprises a porous plate (21) covering the circulation opening (22) of the effluvia, said porous plate (21) comprises a funnel section having a large base and a small base, the small base comprises at least one orifice selective passage (212) and the small base is placed towards the inside of the capture cage (20), characterized in that said selective capture cage (20) comprises a privacy screen (24) placed in front of said at least a selective passage orifice (212) inside said selective capture cage (20), the privacy screen being adapted to create a visual occultation of the orifice, seen from inside the cage opposite said orifice , and configured to allow the introduction of insects via the selective passage orifice into the capture cage.

2. Capture cage (20) according to claim 1, characterized in that the privacy screen (24) comprises at least one translucent material or is made of a translucent material and/or that said capture cage is configured to be modular .

3. Capture cage (20) according to claim 1 or 2 characterized in that the privacy screen (24) is configured to completely mask said at least one selective passage orifice (212).

4. Capture cage (20) according to any one of claims 1 to 3 characterized in that the privacy screen (24) comprises at least two side walls (25).

5. Capture cage (20) according to any one of claims 1 to 4 characterized in that the privacy screen (24) has a generally parallelepiped shape with an inlet orifice arranged so as to be aligned with the orifice selective passage (212) and an outlet orifice arranged to communicate the selective passage orifice (212) with the interior of the capture cage (20).

6. Capture cage (20) according to claim 5 characterized in that the outlet orifice is arranged on the privacy screen (24) so as to face the bottom (201).

7. Capture cage (20) according to any one of claims 1 to 6 characterized in that said at least one selective passage orifice (212) is calibrated on the thickness of the thorax of a species of hymenoptera, by example chosen from Vespa affinis, Vespa analis, Vespa basalis, Vespa bellicosa, Vespa bicolor, Vespa binghami, Vespa crabro, Vespa ducalis, Vespa dybowskii, Vespa fervida, Vespa fumida, Vespa luctuosa, Vespa mandarinia, Vespa mocsaryana, Vespa multimaculata, Vespa orientalis , Vespa philippinensis, Vespa simillima, Vespa sorror, Vespa tropica, Vespa velutina, Vespa vivax, preferably Vespa velutina, Vespa mandarinia, Vespa orientalis.

8. Screening (24) as defined according to any one of claims 1 to 7 for a selective passage orifice (212) of a hymenoptera capture cage (20).

9. Privacy screen (24) for a selective passage orifice (212) of a hymenoptera capture cage according to any one of claims 1 to 7 comprising:

- a wall of size and shape suitable for covering said passage orifice (212) with one of its surfaces;

- a means of offset from the wall;

- means for fixing the privacy screen (24) to said hymenoptera capture cage; and characterized in that the wall offset means is adapted to offset said wall of the privacy screen to create a visual occultation of the orifice, seen from inside the cage facing said orifice, and configured to allow the introduction of insects via the selective passage orifice into the capture cage.

10. Privacy screen (24) according to claim 9 characterized in that it is made of a translucent material.

11. Privacy screen (24) according to claim 9 or 10 characterized in that the wall is configured to completely mask said at least one selective passage orifice (212).

12. Privacy screen (24) according to any one of claims 9 to 11 characterized in that the wall offset means comprises at least two side walls (25).

13. Privacy screen (24) according to any one of claims 9 to 12 characterized in that said privacy screen (24) has a generally parallelepiped shape with an inlet orifice arranged so as to be aligned with the orifice of selective passage (212) and an outlet orifice arranged to communicate the selective passage orifice (212) with the interior of the capture cage (20).

14. Privacy screen (24) according to any one of claims 9 to 13 characterized in that it comprises at least one fixing means adapted to attach it in front of said at least one passage orifice (212) selective to the interior of said selective capture cage (20).

15. Funnel for capture cage (20) according to any one of claims 1 to 7, said funnel ending on its thinnest side with a base having at least one selective passage orifice (212), said passage orifice (212) comprises at least one passage limiting section calibrated on the thickness of the thorax of a hymenoptera, in particular on the thorax of a hymenoptera queen, characterized in that a privacy screen is placed in front of said at least one selective passage orifice on the thinnest side of the funnel or in that said funnel comprises at least one means for receiving and/or fixing a privacy screen according to any one of claims 8 to 14 .

16. Funnel according to claim 15 characterized in that said at least one receiving and/or fixing means is a mechanical means for example selected from the list consisting of a depression, an opening, a clip, a rail, a notch , a snap button and a zipper.

17. Kit for manufacturing a capture cage according to any one of claims 1 to 7 characterized in that said kit comprises a funnel according to claim 15 or 16 and a privacy screen (24) according to any one of claims 8 to 14.