species is now extinct in Belgium since a few decades. Formerly
occuring in very small numbers in the province of Luxembourg.
larva lives on Coronilla varia and Astralagus glycyphyllos.
The larva is attended by
different species of ants and hibernates. Pupates between vegetation.
adults fly usually in two generations a year; from mid May
till June, and from late June till July.
Meuse, Stenay, 19 May 2007.
male - view underside (Photo © Chris Steeman)