128 TRYXALINiE. — OiDIPODIN.T;. 



Geuus CHORTHIPPUS. 



Chorthippus, Fieber, Kelcli, Orthopt. Oberscliles. 1852, p. 1. 



Type, Gryllus elegans, Charp. (= Acrydium albomco'c/inatian, 

 cle Geer). 



Ramie. Europe, Asia, North America. 



General characters oi: Sfaurodems, but the carinae of the pro- 

 notum are subparallel, the lateral carinse only divergiug slightly 

 beyond the middle. 



150. Chorthippus dorsatus, Zett. 



GnjUus dorsatus, Zetterstedt, Ortli. Suec. 1821, p. 82. 



Colour variable, green, testaceous, or brown. Antennae sub- 

 depressed, longer than the head and pronotum together. Pronotum 

 with the transverse sulcus placed about the middle, the head not 

 carinated above, the pronotum strongly tricarinate, the median 

 carina shghtly raised, the lateral carinas slightly incurved before 

 the middle, and then diverging. Tegmina longer than the abdo- 

 men in the male, usually shorter in the female, subhyaline, some- 

 times with a longitudinal yellow scapular line ; wings hyaline, 

 with brown nervures. Pectus and front legs pilose. Legs not 

 spotted ; hind tibiae with about 12 small spines, decreasing in size 

 towards the base. Subgeuital lamina in the male incurved, 

 pubescent ; valves of the ovipositor unarmed. 



Length 14-26 mm. ; pronotum, 3-5 mm.; tegmina, 10-21 mm. 



Europe; N. & W. Asia; Burma. 



Subfamily IV. CEDIPODIN^. 



Key to the Genera. 



[1 (18) Carina of pronotum complete, or cut 

 by one groove. 



2 (14) Thorax rather short. 



3 (17) Basal half of tegmina opaque. 



4 (13) Transverse veins in apical part of 



tegmina erect, the cells square or 

 oblong. 



5 (10) "Wings without well-marked fascia. 



6 (9) Tegmina narrow, with square or 



elongate cells. r -i op 



7 (8) Internal calcaria of posterior tibiae . d^topternis, Saiiss., " 



not greatly unequal, normal . . . . j j^^^^^^^ BoI.,* p. 138. 



* This genus is unknown to me. The author says that it differs from 

 Dittopternis and Heteropternis in haying the calcaria normal. — C. O. W. 



