Thread subject: Diptera.info :: Sepsis => Sepsis thoracica

Posted by Jessica on 25-03-2022 01:07
#1

Hello,

He looks like Sepsis thoracica, is it ?

Taken in south of France, Pyrénées, 2000m, 10 july 2021

zupimages.net/up/22/12/rs9u.jpg

Edited by Jessica on 25-03-2022 20:29

Posted by eklans on 25-03-2022 13:02
#2

Hi Jessica, I've checked it with The Sepsidae (Diptera) of Europe (Pont, Meier) and it looks good! I think you are right with S. thoracica.

Posted by Jessica on 25-03-2022 13:32
#3

Hi Eklans,

Great thanks a lot !
Finally, what makes it possible to confirm the species? The bristles of the tibia 1? Maybe also the general color?

Posted by eklans on 25-03-2022 14:22
#4

Hi Jessica, it's one of the species with meron glossy in posterior half and pruinose in anterior half, and katepisternum also partly shining and without pruinosity. Adult thoracica differs by having a dark spot at the tip of vein R2+3 and lacking a milky-white patch beyond this.

This info + key + figures may be found in The Sepsidae (Diptera) of Europe (Pont, Meier):
https://www.resea..._of_Europe

Posted by Jessica on 25-03-2022 14:33
#5

Okay thank you so much.
I had seen this document, but I could not see the meron. On the other hand, the katepisternum seems pruinose only on its upper part. So I suppose that seeing this pruinosity is enough even if you don't see the meron ? (coupled with the wing spot)

Posted by eklans on 25-03-2022 18:32
#6

What made me think you are right with male thoracica is the complete description in the doc and especially the figure 471 (fore femur).

Posted by Jessica on 25-03-2022 20:29
#7

Ok thank you very much !