Orthonevra robusta

Length, 7.5 mm (0.30 in) The ocellar triangle and frons are bronzy green, with conspicuous, pale brownish pile.

The frons in the female is rather smooth, transversely rugose, and interrupted medianly by a very shallow longitudinal furrow.

In profile the face is rather gently excavated while the mouth margin reaches forward as far as antennal prominence.

The first tarsal joint of the hind legs are somewhat swollen The center of the abdomen is subopaque, shining at the sides.

The hypopygium is rather large, with abundant, short, whitish pile In the female the abdomen is nearly as broad as long.