Thread subject: Diptera.info :: Gymnosoma (Gymnosoma costatum)
Posted by christoophe on 03-12-2017 16:17
#1
Hello
Collected in August in eastern France. Size 4 mm
I find
Gymnosoma inornatum, but I do not have genitalia drawings to check.
pic 1
Edited by christoophe on 07-12-2017 16:49
Posted by christoophe on 03-12-2017 16:17
#2
pic 2
Posted by christoophe on 03-12-2017 16:17
#3
pic 3
Edited by christoophe on 03-12-2017 16:18
Posted by christoophe on 03-12-2017 16:18
#4
pic 4
Posted by Zeegers on 03-12-2017 19:12
#5
Inornatum and costatum are very similar.
It seems, the dust pattern on thoracic dorsum is like nudifrons (opposted to rotundatum). Is that correct ? That would suggest costatum s.s.
the shape of the black spots on tergites suggests costatum as well.
Theo
Posted by christoophe on 03-12-2017 20:06
#6
With the Tschorsnig key, I arrived easily at costatum. And with Cerretti's key, I doubted because I do not know this species.
It's
Gymnosoma costatum.
Thank you
Edited by christoophe on 03-12-2017 20:06