A bed bug trap (2) is combined with a conventional power bar (1). Bed bugs can enter the trap via a small gap (6) between the power bar portion and the bed bug trap, where they then fall off a small precipice (14) and onto a glue strip (4, 5) or the like. The assembly can be easily opened for inspection and replacement of glue cartridges (5). Attractants (7, 17, 13) can be provided, including heat via a small heating element (7), chemical attractants (17), and carbon dioxide via a carbon dioxide generator (13). The assembly can be adapted for use with other insects, or an additional trap (91, 92; 110) can be attached for other insects.