Posted by John Carr on 27-09-2019 00:25
#1
In a field in Massachusetts, USA September 15, 2019.
Muscina pascuorum?
Posted by Nikita Vikhrev on 27-09-2019 14:36
#2
John, as you know calypters require to divide pascuorum and prolapsa. Other characters I know:
1. pascuorum bigger
2. pascuorum more bluish, it looks Calliphora-like
3. postsutural mesonotum with stripes on posterior view
4. vien M more strongly curved that in other Muscina
My test your image is M. pascuorum (with small ?)