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Saturday, 8 November 2025

8-11-2025 MONTE CORONA, VALENCIA - ROBBERFLY (Andrenosoma atrum)

A fly of the family Asilidae and the subfamily Laphriinae.. The genus Andrenosoma has six species recorded in the Iberian fauna, all of them very similar and some indistinguishable to the naked eye.

This is a large, robust insect with a bristling appearance due to the abundant hairs and spines covering almost its entire body. It is almost entirely black, with the exception of some white hairs on the underside. The wings have a smoky appearance. Unlike other species in its genus, it lacks reddish tergites on its abdomen.


This insect is recognizable by its medium size and entirely black body. It is often found near pine stumps from which it emerges and where the females return to lay their eggs.

The adults hunt insects in flight. The larvae feed on dead pine wood.