Thread subject: Diptera.info :: Mystery Cecidomyiidae

Posted by John Carr on 08-09-2019 01:08
#1

Seen today (2019-IX-7) next to my house in Massachusetts, USA. I showed photos to an expert on regional fungivorous Cecidomyiidae and he didn't recognize it despite the unusual characters.

2 mm long, about 8 globular flagellomeres, basitarsi of normal length, no tibial spurs visible, narrow complete eye bridge, horn on anterolateral margin of thorax, large pale bristles on outside of fore coxa. What I can see of the wing veins is consistent with Lestremiinae s. str. but I can't rule out Micromyinae.

Posted by John Carr on 08-09-2019 01:09
#2

Female terminalia. Too bad it flew away before I could catch it.

Posted by Paul Beuk on 10-09-2019 07:28
#3

If wing venation is indeed of the lestremiine kind, then Mathias Jaschhof reckons it is a species of Anarete, in particular because of the 8 subglobular flagellomeres.