Thread subject: Diptera.info :: Platystomatidae, Elassogaster or Plagiostenopterina ?

Posted by Kaprikorn on 14-06-2020 15:49
#1
This is a really weird-looking fly. I'm stuck with this one and I do not have any idea.
Can anyone help ID this fly?

Bangkok, Thailand.
Jul 20, 2019
Edited by Kaprikorn on 18-06-2020 17:07

Posted by Andrew Whittington on 18-06-2020 12:37
#2
Well, it is a Platystomatid and we're talking either Elassogaster or Plagiostenopterina, but I cannot see the necessary characters clearly enough.

Posted by Kaprikorn on 18-06-2020 16:31
#3
Thank you for your help.
Both genus that you mentioned are really close.

Posted by Andrew Whittington on 20-06-2020 08:09
#4
They are, but you can distinguish them: Elassogaster has the ventral setae of the fore femur raised on small warts or tubercles and a asetose face; while Plagiostenopterina has setae on the fore femur inserted in to alveoli and short scattered setae on the face. In addition, but I don't think in all species, cell br is coloured dark brown and barring maybe one species that I've seen, this is not the case in Elassogaster.