9. Base of T2 with distinct median raised area that is semicircular or subtriangular in shape and bounded by weak impression. Fore tibial spur with membranous flange along its mesal face on posterior side, this in addition to similarly-shaped antennal brush of closely-spaced setae on anterior side.

9’. Base of T2 without median raised semicircular or subtriangular area. Fore tibial spur without membranous flange along its mesal face, with only antennal brush of closely-spaced setae.