Claassenia, Stark & Sivec, 2010

Stark, Bill P. & Sivec, Ignac, 2010, Systematic Notes On The Genus Claassenia Wu (Plecoptera: Perlidae), With Description Of A New Species, Illiesia 6 (24), pp. 303-314 : 310

publication ID	https://doi.org/ 10.5281/zenodo.4753177
DOI	https://doi.org/10.5281/zenodo.4756918
persistent identifier	https://treatment.plazi.org/id/2F298794-9349-FFF6-FE13-FAE61DE55648
treatment provided by	Felipe
scientific name	Claassenia
status

Treatment

Claassenia View in CoL ChA

( Figs. 26-27 View Figs )

Claassenia sp. A Stark & Gaufin, 1976:41.

Material examined. China: Sichuan Province, Kuanshien , 2800 ft, 28 July 1938, D.C. Graham, 3♂ (pinned, USNM) .

Adult habitus. General color yellow brown, pattern obscured by specimen condition. Wing membrane subhyaline, yellow brown, veins brown.

Male. Macropterous, forewing length 30-32 mm, body length 22-24 mm. Hemitergal lobes moderately long, curved inward in dorsal aspect with apex slightly swollen, bearing a small patch of mixed sensilla basiconica and fine hairs ( Fig. 26 View Figs ); in lateral aspect, hemiterga bend upward near tips ( Fig. 27 View Figs ), and are membranous and bare on ventroapical margin. Tergum 9 bears a circular mesal patch of sensilla basiconica.

Female. Unknown.

Larva. Unknown.

Comments. Several species have already been proposed from Sichuan Province [ C. brevipennis (Navas) ; C. caudata (Klap{lek); C. debilior (Navas) ; C. gigas (Klap{lek); C. longistyla Wu ; C. semibrachyptera ; C. simplicior (Navas) ]. Only C. semibrachyptera is sufficiently well known to eliminate as the probable identity of this species. The upturned hemitergal lobes for all three males in this sample suggest a possible distinctive character for species recognition.