Coenagrion ecornutum (Selys, 1872)

An Asian species ranging from E kazakhstan and Altai to Japan, locally common in S Siberia. It is very close to the European species Coenagrion mercuriale (Charpentier, 1840).

A male

A sedge bank of a mortlake of the right bank floodland of the Onon River 10 km upstream of Nizhnii Tsasuchei village, Onon District, Chita Province, SE Transbaikalia, E Siberia, Russia. 6th July 1996.

O. Kosterin