Potamanaxas trex Evans, 1953;  Comments: Colombia, Ecuador TL: Ecuador.

Potamanaxas trex ♂, specimen No. BMNH(E)#1054195 [BMNH]. Genitalia of the holotype.
   —   Photo taken by Nick V. Grishin. Any use of this image, except for personal study, requires prior written consent of the Natural History Museum, London