New distribution data of Apis cerana ussuriensis (Hymenoptera, Apidae) from Primorsky Krai, Russia

The Ussurian wax bee, Apis cerana ussuriensis, is a threatened subspecies distributed in Russia only in the south of the Far East. This study presents ten new localities of this taxon from Primorsky Krai (Terneyskiy district, Krasnoarmeyskiy district, Nadezhdinskiy district, Khasanskiy district). Records from Terneyskiy district extend the species' range 100 km north-east. We hypothesised that the A. cerana ussuriensis population, living at the edge of its range under severe climatic conditions, could acquire resistance to extremely low temperatures.