An insect trap (100) having a transparent or translucent entrapment chamber (110) with a closed upper end, an entry cone (130) disposed therein, a base (140) removably attachable to the entrapment chamber, and a lower container (180) for holding a liquid attractant removably attachable to the base (140), such that evaporating attractant from the container enters the entrapment chamber. The base includes a plurality of entry apertures (150) adapted to permit target insects to enter the trap. A support such as a slotted cone (160) is disposed in the entrapment chamber, and supports a vial (170) of solid attractant. The liquid and solid attractants are able to mix in the trap, and gradually escape through the entry apertures, to generate a plume to attract the target insects toward the entrance apertures.