Lobonyx aeneus feeding on Cistus monspeliensis.
This species was previously classified under the subfamily Dasytinae of the Melyridae, but is now transferred to the family Prionoceridae (previously Prionocerinae in Melyridae). Obviously these are very close lookalikes for some of the Dasytinae, especially in the genus Psilothrix.
Prionoceridae is a small family of beetles, in the suborder Polyphaga. The form a group within the cleroid beetles and were formerly treated as a subfamily Prionocerinae within the family Melyridae. Very little is known of their life history but most species are pollen feeders as adults and occur in large numbers during spring or the host flowering season. Larvae are predatory or feed on decomposing wood.