262 CATANTOPIN.Ti:. 



Genus HETEEACEIS. 



Heteracris, Walker, Cat. Derm. Salt. B.M. iv, L^70, p. Grj."). 

 Demodocus, Stal {aec Giieriu), Bill. 8ven.sk. Akad. JIaudl. v (4),. 

 1878, p. 75. 



Type, Acridium Jwrhaceuhi^ Serv. 



liaiKje. Africa, Oriental liegion, Australia. 



Body long, stout. I'astigiuin ot" the vertex sliglitly or not at 

 all depressed, and rounded into the frontal ridge, m liicli is broad 

 and flattened, not sulcated ; antennas filiform. Pronotuui witli a 

 distinct median carina, cut by three shallow sulci, the lateral 

 cariuae slightly indicated, obsolete behind. Prosternal spine 

 stout, more or less pointed, directed backwards ; sj)ace between 

 the mesosternal lobes narrow, longer than broad. Tegmina and 

 wings long and narrow. Legs ver}' long ; hind femora mode- 

 rately thickened at the base, and tapering beyond the middle, 

 extending beyond the abdomen; hind tibiae with from 12 to 

 14 spines. Anal segment of the male large ; cerci stout. 



Key to the Spech^s. 



1 (2) Tegmina unspotted rohiista, Serv., ]>. 2(!2 



2 (1) Tegmina spotted. 



3 (4) Tegmina with small scattered black sputs. iUiisfris, Walk., p. 2()-"> 



4 (3) Tegmina with larger brown spots, liaviiio' 



pale centres, and tending to become 

 continent. 



5 (G) Fastigium of the vertex smooth, not 



depressed tOAvards the extremit}- elcc/cais, Walk., p. 2()4. 



6 (.")) Fasligium of the vertex depressed towards [p. 2(k>. 



the extremity capensis, Thunb., 



322. Heteracris rohusta, Serv. 



Acridium robunt/oa, Serville, Ins. Ortli. 1830, p. ()47. 

 Heteracris duccdis, Walker, Cat. Derm. Salt. B.M. iv, 1870, 

 j)p. 663, 66.J. 



Greenish brown, varied with darker bro\\ii and v. ith yellow 

 stripes. Antennae reddish, longer than the head and pronotum ; 

 head greenish brown, with a broad brown band running down 

 beneath the eyes, bordered in front by a yello\\' stripe ; some- 

 times the whole front of the head between these stripes is dark 

 brown ; fastigium of the vertex short, slightly concave, and 

 obtusely rounded in front, curving into the frontal ridge, AA'hich is 

 narrowest between the antennae, and gradually widened below; 

 vertex dark brown, bordered with yellow on each side. Pro- 

 notum dark brown, closely and rather finely rugose-pinictate, the 

 upper part with the brown yellow-bordered band of the vertex 

 continued to the extremity, the sides usually with some obscure 

 greenish spots, the last sulcus placed slightly behind the middle. 

 Abdomen greenish brown, sometimes with some yellowish lateral 



