Certallum

Certallum

*Certallum* Dejean, 1821 is a small but strikingly distinctive Mediterranean longhorn, immediately recognisable by its metallic blue-green sheen and its remarkable association with cruciferous plants — unique within the Cerambycinae. Adults are diurnal, appearing on warm spring days from April to June, where they are frequently encountered on flowers of *Brassica*, *Raphanus*, and *Sinapis*. Larvae develop in the thick stems of these herbaceous hosts, initially feeding subcortically before entering the sapwood, completing development within a single year. The genus reaches its greatest diversity around the Mediterranean basin, with one species recorded from Europe.

Seasonal activity

Flight season: Spring–Summer

Green = active months · Orange = peak

Host plants

Primary hosts: wood

External resources

GBIF · Wikidata · Käfer der Welt

Field tip: On flowers on warm days. Hosts: Brassica.