Photo © M.Hoskovec

A broadly distributed nocturnal species (West Europe, West Caucasus, Near East, South of European part of the former Soviet Union). In Central Europe it is considered to be quite a rare species. It develops in tiny terminal dead twigs of a variety of deciduous trees. In our climatic conditions it prefers oak (Quercus spp.) and especially common walnut (Juglans regia). The larvae create relatively big pupal cells directly under the bark of the twigs. A. gracilis is nocturnal species, but it can be beaten from leafs and twigs of host trees in daytime.

Body length:	5 - 12 mm
Life cycle:	2 years
Adults in:	April - July
Host plant:	polygophagous in deciduous trees
Distribution:	West Europe, West Caucasus, Near East, South of European part of the former Soviet Union

The beetle in the upper picture was reared from Juglans regia collected in South Moravia (Czech Republic), the one in the lower picture was beaten from Juglans regia in Perivoli village environs (SW of Corfu Island, Greece).

Collected by M.Hoskovec and M.Rejzek.

Photo © M.Hoskovec