Trogoxylon parallelipipedum

The velvety surface texture distinguishes this species from many other powderpost beetles. Definitive identification requires examination of antennal structure and other microscopic features. It can be separated from other Trogoxylon species by detailed morphological characters of the pronotum and elytra.

The species is characterized by a velvety surface texture, which gives rise to its common name. As a powderpost beetle, it is relatively small in size. Members of the genus Trogoxylon typically exhibit a somewhat cylindrical body form typical of Bostrichidae.

Associated with dead and dried wood. The species occupies environments where suitable woody substrates are available for larval development.

Recorded from Australia, Europe and Northern Asia (excluding China), and North America. The broad distribution suggests human-assisted spread through wood commerce, though native ranges within these regions are not clearly delineated.

Larvae bore into and feed on the starch content of hardwoods. The species targets seasoned or dried wood rather than living trees.

• hardwoods - larval food sourceseasoned or dried wood

Complete metamorphosis with egg, larval, pupal, and adult stages. Larvae are the primary wood-boring and feeding stage. Development time varies with wood moisture content and temperature.

Adults are known to bore into wood to create tunnels for egg deposition. Larval feeding reduces wood to a fine powder-like frass, characteristic of powderpost beetles.

Decomposer of dead hardwood material. Contributes to nutrient cycling in forest ecosystems by breaking down lignified plant material.

Considered a pest of seasoned hardwoods in structural timber, furniture, and other wood products. Infestations can cause significant economic damage through reduction of wood to powder. International trade in wood products has likely facilitated its spread across multiple continents.

• Lyctus spp.Other powderpost beetles in the same subfamily Lyctinae; distinguished by surface texture and detailed morphological characters
• Minthea spp.Small powderpost beetles with overlapping distribution; require microscopic examination for separation

• powderpost beetle
• wood-boring
• pest
• hardwood
• Bostrichidae

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life