Posted by Jan Willem on 02-12-2022 14:01
#7
In doubtfull cases it's best to check the pro-episternum which is bare in
Opomyza germinationis and has some hairs in
O. petrei.
Picture from Drake 1993 - A review of the British Opomyzidae (Diptera). British Journal of Entomology and Natural History. Vol 6: 159-176.
Edited by Jan Willem on 02-12-2022 15:01