Bed bug trap

1. A trap ( 10 ) for bed bugs ( 2 ) comprising:

an inner element ( 20 ) having an outer surface ( 24 ) delimited by a first base ( 22 ) and a first top ( 26 ), and

an outer element ( 80 ) being hollow and having a second base ( 86 ) and a second top ( 88 ) delimiting an inner surface ( 84 ),

the outer element being positioned around the inner element with the second top adjacent to the first top and the second base adjacent to the first base, a tapering space ( 12 ) being defined between the outer surface of the inner element and the inner surface of the outer element, the tapering space tapering towards the first top, wherein the distance between the outer surface of the inner element ( 20 ) and the inner surface of the outer element ( 80 ) decreases towards the first top ( 26 ), and wherein the distance between the outer surface of the inner element ( 20 ) and the inner surface of the outer element ( 80 ) is zero at the first top ( 26 ),

the tapering space being accessible to bed bugs crawling on the outer surface of the inner element through a base opening defined between the outer surface of the inner element and the second base,

wherein an adhesive ( 6 ) is provided on at least part of the inner surface ( 84 ) of the outer element for adhering to a dorsal side ( 4 ) of bed bugs crawling on the outer surface of the inner element.

2. The trap ( 10 ) according to claim 1 , wherein the inner element ( 20 ) is hollow and comprises a lure compartment ( 54 ) therein, and wherein a hole ( 28 ) for establishing fluid communication between the lure compartment and the tapering space ( 12 ) is provided in the outer surface ( 24 ).

3. The trap ( 10 ) according to claim 2 , wherein the inner element ( 20 ) comprises a plurality of individual lure compartments ( 54 ), and wherein the outer surface ( 24 ) of the inner element comprises a plurality of holes ( 28 ) for establishing fluid communication between a corresponding lure compartment and the tapering space ( 12 ).

4. The trap ( 10 ) according to claim 2 , wherein at least one of the plurality of holes ( 28 ) is covered by a puncturable seal or a tearable cover ( 42 ).

5. The trap ( 10 ) according to claim 1 , wherein the inner element ( 20 ) is made from paper or plastic.

6. The trap according to claim 1 , wherein the inner element is made out of a lure material.

7. The trap ( 10 ) according to claim 1 , wherein at least one groove ( 56 ) or ridge ( 58 ), extending at least partly from the first base ( 22 ) towards the first top ( 26 ), is provided in or on the outer surface ( 24 ) of the inner element ( 20 ).

8. The trap ( 10 ) according to claim 1 , wherein the inner surface ( 84 ) of the outer element ( 80 ), and/or the outer surface ( 24 ) of the inner element ( 20 ) is provided with at least one spacing element ( 58 , 102 ) for ensuring a minimum distance (δ) between the outer surface of the inner element and the inner surface of the outer element at the second base.

9. The ( 10 ) trap according to claim 1 , wherein the outer element ( 80 ) has a top opening ( 88 ) at the second top ( 88 ), the top opening being configured for receiving the first top ( 26 ) so that at least part of the first top extends through the top opening.

10. The trap ( 10 ) according to claim 1 , wherein the first base ( 22 ) has a larger cross sectional area than the first top ( 26 ), and wherein the second base ( 86 ) has a larger cross sectional area than the second top ( 88 ).

11. The trap ( 10 ) according to claim 1 , wherein the inner element ( 20 ) has a conical, frustoconical, pyramidal or truncated pyramidal shape, and the outer element ( 80 ) has a conical, frustoconical, pyramidal or truncated pyramidal shape.

12. The trap ( 10 ) according to claim 1 , wherein an area ( 104 ) of the inner surface ( 84 ) of the outer element ( 80 ) adjacent the second top ( 88 ) is devoid of adhesive.

13. The trap ( 10 ) according to claim 1 , wherein the outer element ( 80 ) is detachable from the inner element ( 20 ).

14. The trap ( 10 ) according to claim 1 , wherein at least one of the inner and outer elements ( 20 , 80 ) is made from a folded or bent planar sheet, the planar sheet preferably being provided with a fastener ( 34 ) for fastening one part ( 38 ) of the planar sheet to another part ( 32 ) of the planar sheet to maintain the planar sheet in a folded or bent configuration.

15. The trap ( 10 ) according to claim 1 , wherein an adhesive ( 6 ) is provided on all of the inner surface ( 84 ) of the outer element for adhering to the dorsal side ( 4 ) of a bed bug crawling on the outer surface of the inner element.

16. The trap ( 10 ) according to claim 1 , wherein the outer surface of the inner element ( 20 ) contacts the inner surface of the outer element ( 80 ) at the first top ( 26 ).

17. A method of detecting and/or trapping bed bugs ( 2 ), comprising the steps of:

i. providing a trap ( 10 ) according to claim 1 , and

ii. positioning the trap with the first base towards a planar surface ( 1 ) in a locale where bed bugs are present or suspected of being present.