Stenhomalus
Stenhomalus
*Stenhomalus* White, 1855 is a small but ecologically distinctive longhorn genus of the subfamily Cerambycinae, associated with the forest-steppe margins and edges of open, predominantly oak woodland with shrubby undergrowth. Adults, ranging from 5 to 12 mm, are variable in coloration and are encountered from May to early June, often on flowers — particularly *Crataegus* — as well as on dead wood or beneath bark. Larvae develop in slender twigs of weakened, still-standing trees with a diameter of roughly 10 mm, progressing from subcortical feeding into the sapwood over one to three years. Adults may emerge already in autumn, or, following cold winters, not until spring.
Seasonal activity
Flight season: Summer–Autumn
Green = active months · Orange = peak
Host plants
Primary hosts: oak pine birch