Thread subject: Diptera.info :: Mycetophilidae in the bois de Boulogne
Posted by pierred on 22-04-2017 08:57
#1
Hello,
Pierre Duhem : France : Paris : 75016 : 20/04/2017
Altitude : 42 m - Taille : 12-15 mm
Réf. : 181177
Pierre Duhem : France : Paris : 75016 : 20/04/2017
Altitude : 42 m - Taille : 12-15 mm
Réf. : 181178
I'm rather clueless for this specimen, pictured a few days ago in the bois de Boulogne (Paris).
Can somebody give me a direction?
Thanks in advance.
Posted by Jan on 22-04-2017 21:42
#2
Looks like Grzegorzekia collaris
Posted by pierred on 23-04-2017 07:25
#3
Thanks, Jan.
On the other hand, somebody told me that this should be a Sciophilinae, with the little square cell.
Edited by pierred on 23-04-2017 08:01
Posted by Jan on 24-04-2017 23:48
#4
Yes, but this is Grzegorzekia. Sciophilinae have macrotrichia on wing membrane and usually unspotted wings.
Posted by pierred on 25-04-2017 07:07
#5
Thanks for the confirmation.
Posted by John Carr on 25-04-2017 12:54
#6
The r-r crossvein means Sciophilinae in the traditional classification by Edwards. Most of Edwards' subfamilies are now considered families. The family Mycetophilidae is restricted to (Mycetophilinae + Sciophilnae sensu Edwards) and is often divided into about 8 subfamilies. At least 2 of the new subfamilies have the r-r crossvein.
I have also seen the crossvein called R2 and R4.
Posted by pierred on 25-04-2017 14:12
#7
Thanks for those comments.
Posted by Jan on 29-04-2017 09:22
#8
The R4 cross vein is a widely distributed plesiomorphic character state across the subfamillies Mycomyiinae, Gnoristinae and Sciophilinae in the modern strict sense. But it is not present in all genera in any of these subfamilies.
Posted by pierred on 29-04-2017 11:35
#9
In understand better, now.
Thanks again.