Assamacris Uvarov, 1942

Mao, Ben-Yong, Ren, Guo-Dong & Ou, Xiao-Hong, 2007, Two new species of the genus Assamacris (Orthoptera: Acrididae: Catantopinae) from Yunnan, China, Zootaxa 1516, pp. 61-68 : 62

Key to the species of the genus Assamacris Uvarov, 1942

1 Tegmina with apex extending to or beyond posterior margin of 2nd abdominal tergite............................... 2

- Tegmina with apex extending to or beyond posterior margin of 5th–10th abdominal tergite........................ 3

2 Mesosternal interspace 1.4 times as long as minimum width; lateral lobes of metasterum widely separate (female unknown). Male cerci with ventral branch about 1/6 of whole cercus length ................................ .......................................................................................................................... A. curticerca ( Huang, 1981)

- Mesosternal interspace 1.8–2.0 (male) or 1.0 (female) times as long as minimum width; lateral lobes of metasterum narrowly separate. Male cerci with ventral branch about 1/4 of whole cercus length .............. .......................................................................................................................... A. longicerca ( Huang, 1981)

3 Light bands on disc of pronotum bi-furcated or interrupted by an oblique dark stripe in metazona. Male cerci narrow, almost bi-furcate apically....................................................................................................... 4

- Light bands on disc of pronotum almost straight in metazona. Male cerci stout, distinctly bi-furcate apically.............................................................................................................................................................. 5

4 Hind femur yellowish brown with a brown fish-bone pattern on outer side. Male cerci with obtuse, wider dorsal branch. Face in lateral view slightly oblique in male .................... A. spinipicta Ingrisch et al., 2004

- Hind femur light olivaceous with two rather broad brown spots on outer side. Male cerci with acute, narrow dorsal branch. Face in lateral view strongly oblique in male ............................ A. striata Uvarov, 1942

5 Tegmina nearly reaching 5th abdominal tergite or middle of hind femur in male, 5th–7th tergite or faintly beyond middle of hind femur in female (figs 27–29). Male cerci stouter, ventral branch distinctly narrower than dorsal branch (fig. 6). Female subgenital plate with posterior margin sinuate (fig. 8) ............... .................................................................................................................................. A. trimaculata sp. nov.

- Tegmina nearly reaching 8th–10th abdominal tergite or three-fifths of hind femur in male, 6th–10th tergite or seven-tenths of hind femur in female (figs. 30–32). Male cerci narrower, ventral branch slightly narrower than dorsal branch (fig. 19). Posterior margin of subgenital plate with two obtuse teeth in female (fig. 20) ...................................................................................................................................... A. bidentata sp. nov.