ACRIDID^. 573 



Male. Tawny. Head and proihorax with a paler stripe. Head 

 smooth, with a blackish oblique streak on each side of the stripe, which has 

 a whitish disk in the hind part and an anterior interrupted white i)and ; the 

 latter adjoins the depressed slightly hexagonal fore jiart; some whitish 

 rays along the hind side of each eye, a black lanceolate streak proceeding 

 from the eye towards the mouth; front almost erect, thinly punctured, with 

 four keels, of which the inner pair are parallel and the outer pair diverge 

 towards the inoulh. Eyes ferruginous, fusiform. Prothorax finely 

 scabious, diffusedly blackish on each side of the stripe; a slight middle 

 keel and four transverse impressed lines; first line interrupted in the 

 middle; second much abbreviated on each side; two yellow stripes and two 

 blackish stripes on each side, extending from the fore border to the fourth 

 transverse im|)ressed line; a yellow stripe along each side which is hardly 

 rounded ; fore border slightly rounded ; hind border forming a truncated 

 angle. Prostenial spine stout, slightly curved, elongate-conical. Hind 

 femora a little longer than the abdomen, striped with black on each side. 

 Hiud tibiae a little shorter than the hind femora ; spines while with black 

 tips, tliose on the iuner side a little longer than those on the outer side. 

 Fore wings cinereous, with many points, dots, spots and streaks formed by 

 black veins and appearing darker near the base, where the areolelsare very 

 small; veins elsewhere white. Hind wings pellucid; veins black, bluish 

 wliiie on the hind part towards the base. Length of the body 24 lines ; 

 expansion of the lore wings 54 lines. 



46. Cyrtacanthacris ajkenui.a. 



Foem. Lulea ; antenna rufa; prothorax vitlis duabus nigris latis 

 approximatis, carina dorsali incisa, margine poslico vix angulato ; 

 prosterni spina pallide Jlava, robusta, obliqua, vix arcuata, mesoKternum 

 uttingens ; alcB anlicce cinereic, maculis nonnullis fusco aut nigricante 

 venosis ; alee poslicce pallide fuscescentes, basi pallide Jlava. 



Female. Luteons. Head smooth ; fore part of the vertex hexagonal ; 

 front with four well-defined keels, which hardly diverge towards the face. 

 Eyes piceons, elongate-elliptical. Antenns red, luteous at the base. 

 Prothorax scabrous, with two broad black approximate stripes and with a 

 slight keel which is notched by the strongly marked transverse impressed 

 lines; fore border rounded; sides hardly rounded; hind border hardly 

 angular. Prosternal spine pale yellow, stout, oblique, hardly curved, 

 extending to the fore border of the mesosternum. Fore wings cinereous, 

 nearlj as long as the body, with several rather large spots which are formed 

 by brown or blackish veins; veins elsewhere pale yellow. Hind wings 

 hyaline, pale brownish, pale yellow towards the base ; veins brown, yellow 

 towards the base. Length of the body 19 lines; expansion of the fore 

 wings 39 lines. 



The specimen described is deprived of the hind legs. 



