An insect trap (100) is disclosed which has insect retention means (300) for preventing escape of insects which enter an effective zone of said insect retention means (300) and insect attractant means (200) for attracting insects from a selected group of insects to within said effective zone of said insect retention means (300). The attractant means include at least one variable infra-red radiation emission means (2, 4) adapted to emit variable infra-red radiation. The arrangement is such that insects from the selected group which are outside the trap (100) can detect the variable infra-red radiation and are attracted to an area within the effective zone of the insect retention means (300). A method of attracting insects from a selected group of insects to a predetermined location is also disclosed.