ABSTRACT
Abdomen of male with eight visible sternites, of female with seven, sternites not fused, dorsal and ventral surfaces equally sclerotized, not membranous. Male genitalia trilobed; penis long, narrow, variously modified, some with penis membranous except for a few struts; parameres very short and fused to base of penis, or long and surrounding penis; pars basalis large and scoop-shaped, some with pars basalis reduced to a narrow ring.