Thread subject: Diptera.info :: Sepsis => Sepsis thoracica
Posted by Jessica on 25-03-2022 00:07
He looks like Sepsis thoracica
, is it ?
Taken in south of France, Pyrénées, 2000m, 10 july 2021
Edited by Jessica on 25-03-2022 19:29
Posted by eklans on 25-03-2022 12:02
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 12:32
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 13:22
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):
Posted by Jessica on 25-03-2022 13:33
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 17:32
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 19:29
Ok thank you very much !