Obrida

Small, dark dorsally flattened beetles with elytra bearing broad orange stripe; antennae extending beyond middle of elytra. Frontoclypeus as long as broad. Gland opening at base of mandibles absent. Eyes finely facetted, deeply emarginate. Antennal tubercles broadly separated, close to mandibular articulation. Antennal foramen depressed. Antennal scape gradually expanded toward apex, distinctly shorter than pronotum; pedicel as long as wide; antennomere 3 shorter than scape. Pronotum subquadrate, lateral margins smooth; pronotal disc without raised tubercles. Prosternal process narrow, not expanded posteriorly, angulate and strongly declivous behind coxae. Procoxal cavities circular without angular gap laterally; widely open posteriorly. Procoxae weakly projecting below prosternal process. Mesoventrite with knob in front of mesocoxae; mesoventral intercoxal process moderately broad, straight apically. Mesocoxal cavities closed or narrowly open to mesepimeron; mesotrochantin not visible. Elytra with 3 ridges; punctures distinct not in rows, apices rounded. Metafemur extending beyond apex of abdomen; femora and tibiae not carinate.

Obrida is endemic to eastern and south-eastern Australia. It has not been recorded from Tasmania.

Adults are active fliers and have been collected from September to April on flowers of various trees and bushes (Acacia longifolia, Syzygium smithii, Angophora, Backhousia, Leptospermum, etc). Obrida fascialis has been reared from Acacia parramattensis and Obrida comata from A. aulacocarpa.