Has trap insects

The present invention provides an insect trap including an upper portion with a flow chamber (10), at least one mouth of movement of insects (8), insect selecting means (12) arranged in the enclosure circulation adapted to electrify the first insects (1), and not to electrify second insects (2) a bottom, into which insects fall electrified gravity lethal means (22) adapted to kill insects electrified; wherein a separating flap (28) mobile is adapted to separate the upper part (4) of the lower part (6) in the closed position and for communicating the upper portion (4) with the lower part (6) in the open position. And the selectivity of the insect trap is improved because the lethal area is not directly accessible to insects flowing in the enclosure.