Insect trap is made of a piece of (1) for limiting an adhesive surface (4), is characterized in that, in order to engage the opposite end together, the sheet material (1) includes on two opposite ends engaging means (2,3)； In this way, when the opposite end is bonded together, the adhesive surface (4) is curved. It allows insect trap to be used for any position, including in a cupboard or on a table.
