Abstract: A trap housing for trapping insects, which particularly allows an insect trapping adhesive sheet to be replaced with ease and which can trap a great number of insects efficiently, is provided. The adhesive trap housing is constructed so that a tray and a cover body having rectangular openings are pivotably joined with each other via hinge pieces and engagement members so as to allow the housing to be freely opened and closed. Retaining pieces are arranged on the corners of the tray so that an insect trapping adhesive sheet can be removably fixed thereto. In addition, a window is provided in the tray, and a curved portion projecting inward towards the tray is formed in a substantially middle portion of the cover body. Bird protecting barriers are attached to the openings of the cover body.