Laemophloeidae

Definition

A family of small beetles (Coleoptera: Cucujoidea), commonly called lined flat bark beetles, characterized by dorsoventrally flattened bodies, ridged or grooved borders on the head and pronotal discs, and inverted male genitalia. Adults range 1–5 mm in length and are found worldwide except Antarctica, with highest diversity in tropical regions. The family comprises approximately 40 genera and 450 species, many associated with dead or dying wood where they feed on fungal hyphae or small arthropods.

Etymology

From Greek laimos (throat, gullet) and phloeos (bark), alluding to their flattened habitus and association with bark habitats.

Example

Cryptolestes ferrugineus, a stored-product pest in the Laemophloeidae, infests grain elevators and food warehouses worldwide.

Synonyms

• Lined flat bark beetles

Related Terms

• Cucujoidea
• Coleoptera
• Cryptolestes
• bark beetle
• sap beetle
• stored-product entomology
• phloeophagy

Usage Notes

Distinguished from other flat bark beetles (e.g., Cucujidae, Passandridae) by the combination of inverted male genitalia and specific pronotal ridge/groove patterns. Not to be confused with Scolytinae (true bark beetles, Curculionidae), which are weevils with different ecology and morphology. Laemophloeidae are often overlooked in field surveys due to their small size and cryptic habits under bark.