Gansucossus luanpingensis (Hong, 1983) comb. nov. Yumenia luanpingensis Hong, 1983: 50 –51, pl. 12, fig. 5, text­fig. 37. Plachutella luanpingensis (Hong, 1983): Ren 1995: 65. Shurabocossus luanpingensis (Hong, 1983): Zhang 1997: 319 –320. Revised diagnosis. Hind wing elongate with its sharp apex, length/width ratio 1.9; costal area long, length/width ratio 5.5, costal area maximal width in about basal 1/3; crossvein m­cua long and oblique; media area wide. Age and occurrence. Middle Jurassic Jiulongshan Formation; Luanping, Hebei Province, China. Remarks. Judging from the photograph of D. luanpingensis (Hong, 1983, pl. 12, fig. 5), it is obvious that the anal area is folded along PCu and A1 terminates in the anal margin. The length/width ratio of the hind wing is easily changed in the taphonomic process. Therefore, judging from the shapes of the m­cua and media area, it is better to place this species in Gansucossus.

Published as part of Wang, Bo, Zhang, Haichun & Fang, Yan, 2006, Gansucossus, a replacement name for Yumenia Hong, 1982 (Insecta, Hemiptera, Palaeontinidae), with description of a new genus, pp. 59-68 in Zootaxa 1268 on page 62, DOI: 10.5281/zenodo.173205