Carterocephalus palaemon (Pallas, 1771) albiguttata Christoph, 1893 (Checquered Skipper) (above) and C. silvicola (Meigen, 1829) (Northern Chequered Skipper) (below)

Range: two close species flying together in the Boreal zone of Palaearctic (the former also in Nearctic) happened to sit resting together.

A valley meadow in a birch forest in the Shadrikha Rivulet valley 2 km upstream of the village Melnichikha, Novosibirsk District and Province, West Siberia, Russia. 27th May 1995. O. Kosterin