Thread subject: :: Chalcosyrphus valgus

Posted by Marion Friedrich on 27-05-2022 12:17

I found this Chalcosyrphus sp. on a dead Aspen in the end of May in Saxony (Germany). Ten days earlier I photographed at the same place a male Chalcosyrphus femoratus. Are the hind tibiae enough bended for a female Chalosyrphus femoratus? Halteres seem to be dark yellow on the first picture. Do you agree with C. femoratus or is it a C. valgus?

Edited by Marion Friedrich on 30-05-2022 23:05