560 CATALOGUE OF 



22. CYKTACANTHACRIS DECISA. 



Fcem. Pallide festacea ; vertex anlicus planus, fere hexayonalis ; pro- 

 thorax vittis duahus latis approximatis obscure fermgineis ; mesosterni 

 spina longa, robusta, subarcuata ; tibice posticce supra picece; alee 

 (inticfc cinerecc, maculis nonnullis e vents nigris ; ala. posticce apice 

 subobscuriores, venis fuscis basi pallide flavis. 



Female. Pale testaceous. Head smooth, hardly broader than the 

 fore border of the prothorax ; vertex convex, its fore part flat and nearly 

 hexagonal ; front punctured, very slightly oblique, with four keels, of which 

 the inuer pair are nearly paraHel and the outer pair diverge slightly towards 

 the face. Eyes elliptical. Prothorax finely scabrous, with two broad dark 

 ferruginous stripes which are separated by a line of the ground hue ; a slight 

 dorsal ridge and four transverse impressed lines, of which the first is inter- 

 rupted in the middle and the second is abbreviated on each side ; fore 

 border slightly arched ; hind border more elongated ; sides nearly straight. 

 Prtisternul spine long, stout, slightly curved, extending a little beyond the 

 fore border of the mesosternum. Abdomen and legs tawny. Hind femora 

 ;s long as the abdomen. Hind tibiae hardly shorter than the hind femora, 

 piceous above ; spines black, yellow towards the base, longest on the inner 

 side. Wings cinereous. Fore wings with several spots formed by black 

 veins. Hind wings a little darker at the tips; veins brown, pale yellow 

 towards the base. Length of the body 21 25 lines; expansion of the 

 fore wings 38 54 lines. 



The prothorax is shorter than that of C. inlerrupta and the hind border 

 is more rounded than it is in C. ranacea and in C. turbida. 



a. Whydah. From Mr. Fraser's collection. 



b. Sierra Leone. Presented by the Kev. D. F. Morgan. 



23. CYBTACANTHACEIS CONCISA. 



Fcem. Testacea ; caput et prothorax ferrugineo late bivitlata ; caput 

 antice subhexagonale, strigis duabus lateralibus tribusque frontalibus 

 ferrugineis ; prothorax vittis duabus submarginalibus ferrugineis^ 

 margine postico valde producto non angulato ; alee anticce cinerece, 

 guttis subcoslalibus maculis duabus discoidalibus fasciisque tribus 

 exlerioribus obliquis abbreviatis e venis nigris aul fuscis ; alee pos- 

 ticce diaphance, venis nigris bad pallidis. 



Female. Testaceous. Head and prothorax with two broad ferruginous 

 stripes. Head smooth ; vertex in front six-sided, the fore side and the hind 

 side short, the six angles somewhat rounded ; a ferruginous streak proceeding 

 from each eye to the mouth and three ferruginous streaks on the front; 

 keels of the front strongly marked, the inner pair diverging slightly, the 

 outer pair diverging much towards the face. Eyes fusiform, with several 

 brown longitudinal lines. Prothorax finely scabrous, slightly keeled, with 

 four {transverse impressed lines, of which the first is interrupted in the 

 middle and the second is much abbreviated on each side; some minute 

 pale pustules in the two stripes ; a broad submarginal ferruginous stripe on 



