An insect trap device for attracting mosquitoes includes a main body including an upper inlet and a lower outlet, a suction fan disposed in the main body and configured to draw air from the upper inlet to the lower outlet, an insect filter disposed upstream of the suction fan, the insect filter including a plurality of openings, an upper body disposed in a spaced relationship with the upper inlet, an ultraviolet (UV) light source disposed between the upper inlet and the upper body, an air collector disposed downstream of the suction fan, and an insect collector disposed on the lower outlet under the air collector, in which the air collector has a substantially conical shape including a central opening at a distal apex and a plurality of side openings including mesh.