Chalcosyrphus valgus explained
Chalcosyrphus valgus is a medium-sized species of hoverfly[1] with a widespread range throughout the Palearctic region.
Distribution
Europe, Japan.
Notes and References
- Book: Van Veen, M.P. . Hoverflies of Northwest Europe, Identification Keys to the Syrphidae . Hardback . 2004 . KNNV Publishing . Utrecht . 90-5011-199-8 . 254 .