Thread subject: :: Pachystylum? (Exoristinae, Tachinidae) from Greece - id help

Posted by Xeroporcellio on 01-12-2023 13:01

John Carr wrote:
The single strong bristle at the base of R4+5 is normally of generic significance. Most genera have at least a few weak bristles. The exceptions with one strong bristle are not closely related to each other.

Is the first post-sutural supra-alar weak or strong?

The first post-sutural supra-alar (red arrow) seems to be very strong, at least as strong as the notopleural bristles (yellow arrow). NOTE: the left supra-alar has been broken off the specimen and the right one (the one used in the photo) has a broken apical portion.