Thread subject: Diptera.info :: Borborillus?

Posted by Jogvan F on 19-11-2025 00:01
#1
I have a singel female specimen of this species that was swept down by a lake. Main vegetation close to water is ling (mainly Calluna vulgaris). Could be swept above dead bird or faeces of sheep or geese.

Could this be C. notabilis?

Collected 15. august 2025
Faroe Islands

Thanks
Jógvan F



Species of Crumomyia recorded from the Faroe Islands:

C. nigra
C. nitida
Edited by Jogvan F on 09-12-2025 09:45

Posted by Jogvan F on 19-11-2025 00:02
#2
ac hairs in two rows

Posted by Jogvan F on 19-11-2025 00:05
#3
av seta on hind tibia (i guess)

Posted by Jogvan F on 19-11-2025 00:05
#4
wing

Posted by Jogvan F on 19-11-2025 00:06
#5
humeral seta. one large and at least one smaller (less than half length of the long one)

Posted by Jogvan F on 08-12-2025 21:19
#6
C. notabilis is most likely a wrong guess.

Now I am quite sure it is a Borborillus. Could it be B. vitripennis or maybe B. sordidus?
Not very visible on photo but the knees are yellow/light brown. Front knees most pale. Coxa of front legs paler than femur.
Specimen viewed in ethanol.

Can it at least be confirmed to be a Borborillus?

Thanks
Jógvan F