Posted by Michael Ackland on 27-07-2008 18:06
#2
Eustalomyia female
Arista long haired, the length of hairs on upper surface equal to width of postpedicel = hilaris Fall.
Arista shorter haired, total width of hairing = width of postpedicel= festiva Zett.
Arista only pubescent=histrio Zett.