Type species

Ernoporicus spessivtzevi Berger
Adapted from Wood 1982, p. 858-859


The only species in this genus in North America north of Mexico is known only from the type specimen collected in West Virginia. The description below was based on Wood’s (1982) description of that specimen and photos of E. takahashii and E. ater from the Takahashi and Nobuchi collection, respectively. The genus can be distinguished from the similar Trypophloeus Fairmaire by the 4-segmented funicle, the more rounded club with procurved sutures, and the weakly sinuate anterior margin of the eye.


The type species measured 1.65 mm long and 2.6 times as long as wide. Their color ranges from dark brown to black in other species. The pronotum is usually longer than wide, its anterior half asperate, and the anterior margin armed. The scutellum is small and flush with the elytra. The declivity is convex and the vestiture consists of erect and light colored scale-like setae; it is also unarmed. The anterior margin of the compound eye is weakly sinuate. The funicle is 4-segmented. The club is near circular, with three procurved sutures. The procoxae are contiguous.


West Virginia, Europe, and Asia

World fauna

Number of species: 14, Native species: 1, Introduced species: 0


Fagus, Fraxinus, Tilia