This quite common species is found in France, Italy, Spain, Portugal, North Africa (Morocco, Algeria, Tunisia) and in the Near East.

[2] These beetles occur in warm-dry areas, both in the plains as well as at an elevation of a thousand meters.

[citation needed] Exosoma lusitanicum can reach a length of 6–8 millimetres (0.24–0.31 in).

These small beetles have an elongated, oval and glabrous body.

Larvae feed on bulbs of Amaryllidaceae (for instance Narcissus tazetta) and Liliaceae species, while adults feed on flowers of several wild plants, mainly Asteraceae species and are potentially dangerous for vineyards.