Polyommatus bellargus - Lot Moths and Butterflies - species in Las Descargues, the Lot, France
drawing of a moth



Las Descargues, 31 May 2009
Polyommatus bellargus Adult


© Alan Martin

Polyommatus bellargus (Rottemburg, 1775)

Adonis Blue
Le Bel-Argus

Wingspan: 30-36mm

A bivoltine species flying from April to September but often until November further south. A species of dry grassy habitats it has been recorded from the ridge at Las Descargues but is far more common at lower altitudes on the Causse.

The two principal larval foodplants are Hippocrepis comosa, Coronilla varia. Hibernates as a small larva and is attended by various ant species Lasius alienus, L. niger, Plagiolepis pygmaea, Myrmica, Tapinoma spp. with pupation taking place close to the entrance to the ant's nest in plant detritus or under stones.