Longchuanacris

Mao, Ben-Yong, Ren, Guo-Dong & Ou, Xiao-Hong, 2007, A taxonomic review of Longchuanacris Zheng et Fu (Orthoptera: Acrididae: Catantopinae), with descriptions of two new species from Yunnan, China, Zootaxa 1467, pp. 51-62 : 52

Key to the male of species of Longchuanacris

1 Hind femora with a orange or red ring before knee......................................................................................2

- Hind femora without any color ring before knee..........................................................................................4

2 Hind femora with a broad, red ring before knee. Furculae with basal half upright, apical half frontad curv- ing (figs 3–4); cerci triangular, compressed, apex incurve and obliquely truncated, with upper angle sharp and lower angle obtuse (figs 3–4) ........................................................................................... L. bidentatus

- Hind femora with a narrow, orange ring before knee. Furculae entirely upright (figs 26–28)....................3

3 Cerci with apex acute........................................................................................................ L. macrofurculus

- Cerci with apex bilobate, dorsal branch longer than ventral branch (figs 26–28)...... L. bilobatus , sp. nov.

4 Furculae entirely upright, triangular; supra-anal plate broadly scutate; apex of cerci obliquely truncated, with upper angle acute and lower angle obtuse (figs 13–14) ...................................................... L. viridus

- Furculae with basal half transverse and upright, apical half triangular and forward curving; supra-anal plate semicircular, cerci with apex nearly bilobate (figs 40–41)......................... L. curvifurculus , sp. nov.