The present invention relates to 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 is positioned around the inner element with the second top adjacent the first top and the second base adjacent the first base, whereby a tapering space (12), tapering towards the first top, is defined between the outer surface of the inner element and the inner surface of the outer element. The tapering space is 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. An adhesive (6) is provided on at least part of the inner surface of the outer element for adhering to the dorsal side (4) of a bed bug crawling on the outer surface of the inner element. The invention further relates to a method of detecting and/or trapping bed bugs.
