---

Hi Stephen,
You are rigth !, but I am still working to on this problem also. There are some points of view.
The last has been published in Contribiution of Palaearctic Diptera edit by Papp and Darvas in 1998, were A. helvola has been changed to Gymnomus helvolus (Loew). Present (before my paper will be finished and published) I can tell not more than: Scoliocentra is closely related to Gymnomus and Amoebaleria !!!. ;). You can use the name Scoliocentra helvola Loew from the author's description !. Regarding the sex :p: At the second photo the specimen has a little swollen abdomen and the apex is more or less triangle (there are the cerci !). In my opinion the true taxa (in Animals) which are "natural evolved" are the species, the higher taxa more or less could be or are paraphyletic.
Regards,
Andrzej