Paralathra filicornis CASEY 1905: 130.

T y p e m a t e r i a l e x a m i n e d Holotype ♀ [dissected prior to present study]: "Greeley Colo, Wickham / Casey bequest 1925 / Type USNM 38177 / Presumed Holotype Paralathra filicornis Csy L. Watrous 81/ Holotypus Paralathra filicornis Casey, rev. V. Assing 2012 / Pseudolathra filicornis (Casey), det. V. Assing 2012" (USNM).

C o m m e n t: The original description of Paralathra filicornis is based on a single female specimen from "Colorado (Greeley)" collected by "Mr. Wickham" (CASEY 1905). The species is the type species by monotypy of the genus group name Paralathra CASEY 1905, a junior synonym of Pseudolathra CASEY 1905. Based on an examination of the holotype, the generic placement of P. filicornis in Pseudolathra and the synonymy of Paralathra with Pseudolathra are confirmed.

Pseudolathra filicornis is distinguished from P. inviolata by its slightly larger and distinctly broader body (especially pronotum), and by the less densely punctured, shallowly microsculptured, and somewhat glossy abdomen. The supra-marginal line of the elytra is very fine, reaching neither anterior nor posterior margins of the elytra in lateral view.