Posted by Dmitry Gavryushin on 22-05-2023 15:19
#1
May 14, 2023, Russia, Moscow reg., Naro-Fominsk env. On a dead aspen, many males and females, courting and mating.
Images of flies were posted here (as
leucopeza, before examining male terminalia):
https://www.inaturalist.org/observations/161667952