Lyctides are commonly known as (true) powderpost beetles because their larvae produce a very fine, powder like frass in their galleries (vs. bostrichids/false powderpost beetles and anobiids, whose larvae produce coarser frass which also contains fine wood fragments or pellets respectively). They are world wide in distribution, with about 11 species occurring in the United States.
Female lyctids lay their eggs (15-50) in exposed wood pores, cracks, or crevices. Eggs are never deposited in/on waxed, polished, painted, or varnished surfaces. The larvae loosely pack their tunnels with very fine powder-like dust. After several molts requiring 2-9 months the mature larva bores to near the surface and constructs a pupal chamber and pupates. When the adult emerges, it bores straight to the wood’s surface and exits/emerges. Indoors, adults usually emerge in late winter or early spring and with little feeding, mate. Under very favorable conditions, developmental time usually requires 9-12 months, but may be as short as 3-4 months or as long as 2.5-4 years. Although some lyctids are strong fliers, most tend to lay eggs in the wood from which they emerged.