The trap is of the type comprising a casing with bait inside the same, the casing being provided with opening communicating the inside and outside such that the insect can enter to feed and subsequently exit, or even allowing several insects to simultaneously feed on the bait without inconveniencing one another, wherein the bait is placed in a container that prevents involuntary access to the bait, and the casing comprises a cover (6) with a periphery that alternates raised (8) and recessed (9) areas that generate gaps (12) providing access to the interior.
