Photographed August 21, 2013. This is a rare Robber Fly. Until recently the last fly was collected in New Jersey in 1987. Shortly after I posted this fly from Wisconsin on Bugguide, several others were photographed in North Carolina. If you have photographed a fly similar to this, please post a photo or photos on Bugguide.net.bugguide.net/node/view/828011
Lucas A. Cezar, Eric M. Fisher, Carlos J. E. Lamas
Zookeys
Figure 8.Spermathecae: A Oidardis maculiseta B Oidardis fontenellei C Oidardis falcimystax D Oidardis marinonii. ag, acessory gland; gf, genital fork; st, spermatheca. Scale bar: 0.2 mm.