Posted by
Jessica on 18-12-2020 17:49
#1
Hello,
I don't kow what species is this fly.
She looks like Phaonia serva but thorax and tibia 2 setaes don't match.
Or it is an Hydrotaea ?

Jessica Joachim : Suisse : Les Agettes : 1992 : 13/08/2020
Altitude : 2058 m - Taille : 8 mm environ
Réf. : 273119

Jessica Joachim : Suisse : Les Agettes : 1992 : 13/08/2020
Altitude : 2058 m - Taille : 8 mm environ
Réf. : 273120

Jessica Joachim : Suisse : Les Agettes : 1992 : 13/08/2020
Altitude : 2058 m - Taille : 8 mm environ
Réf. : 273121
Edited by
Jessica on 19-12-2020 22:03
#2
Hi Jessica. If you find at 2000 m asl something Phaonia-like but not Phaonia; Hydrotaea-reminds but not Hydrotaea, it means that you met Thricops!
Th. longipes (with very small "?" mark)
Posted by
Jessica on 19-12-2020 22:03
#3
Hi Nikita,
Oh great, thank you very much

So it's an altitude species ? And how can I differenciate nigrifrons from longipes ?
Edited by
Jessica on 19-12-2020 22:43
#4
Yes, for Central Europe it is alpine species. (In N Russia - very common everywhere.)
For identification see my key here:
https://ia800502.us.archive.org/26/items/RevisionOfTheKeyCharactersForTheThricopsNigrifronsSpecies-group/788-G-3-layout.pdf