Jurataenionema Liu and Ren

Liu, Yushuang, Sinitshenkova, Dong Ren Nina D. & Shih, Chung Kun, 2007, The oldest known record of Taeniopterygidae in the Middle Jurassic of Daohugou, Inner Mongolia, China (Insecta: Plecoptera), Zootaxa 1521, pp. 1-8 : 2

Genus Jurataenionema Liu and Ren , gen. nov.

Type species. Jurataenionema inornatus Liu and Ren , sp. nov.

Etymology. The generic name is taken from the combination of Jura and T aenionema (a genus of Taeniopterygidae )

Species included. The type species J. inornatus Liu and Ren , sp. nov. and J. stigmaeus Liu and Ren , sp. nov.

Diagnosis. Wings are macropterous, translucent. No additional veinlets on the costal area, c–r present or very faint, sometimes grey pterostigma presents in the terminal space of forewings; Rs with three branches, M and CuA with two long branches, and fork at level of midlength of Rs stem; 5–8 crossveins in the median and cubital areas. Ninth sternite produced, with a median tongue–like erect and then bent forward extension tapering to around or cuspidal tip, tenth tergite transversely wide, sclerotized. Cerci short, eight to ten segments.

Remarks. The new genus Jurataenionema differs from the extant genera by the longer cerci and long branches of CuA; differs from the extinct Gurvanopteryx by Rs with three branches and the longer first segment of hind tarsus; differs from the extinct Positopteryx by c–r present, Rs with three branches.