Philorheithridae Mosely, 1936

Oláh, János & Johanson, Kjell Arne, 2010, Description of 33 new species of Calamoceratidae, Molannidae, Odontoceridae and Philorheithridae (Trichoptera), with detailed presentation of their cephalic setal warts and grooves 2457, Zootaxa 2457 (1), pp. 1-128 : 120

Philorheithridae Mosely

Philorheithridae Mosely, 1936: 413 .

The wing venation of species in this family is more complete and persistence compared to in the Odontoceridae . The presence of a postanal vein in the forewings (sensu Schmid 1998) forms a potential synapomorphy for Philorheithridae + Odontoceridae (Weaver et al. [submitted]). A well developed sclerotized anal lobe with microtrichia is present on each forewing base. The wing venation has usually sexual dimorphism. The female venation is more complete than the male venation. Forks I, II, III, V are present in the male forewings whereas forks I, II, III, IV, V are present, or vary, in the female forewings. The male forewing discoidal cell is closed; the median cell is open; and the thyridial cell is closed. The mesoscutellar setal warts are usually paired, small, or absent. The apicomesal nodule on the first segment of the maxillary palps is usually but not always present. The front pilifers are usually present, but absent in genera of Austrheithrus , Ramiheithrus and Psilopsyche .