658 Mr. R. Shelford on the Studies of the Blattidne. 



acthiopica) ; Togo, Bismarckburg (Buttner) (Berlin Mus.) ; 

 Biafra, Cabo S. Juan (Hscalera) (Madrid Mus.) ; Kamerun, 

 (Griefswald Mus., type of pndchella) ; Congo, Buta (Ribotti) 

 (Genoa Mus.). 



This is a most variable species which I am unable to 

 split up even into constant local varieties. The West 

 African male specimens have the tegmina rufo-testaceous 

 and the anterior ulnar vein of the tegmina usually bifur- 

 cate, but specimens from Shoa also have the tegmina 

 rufo-testaceous, and the East African males in general 

 sometimes have the anterior ulnar vein simple sometimes 

 branched, so that these characters cannot be employed 

 for subdividing the species. The form of the terminal 

 segments of the abdomen in the male also varies within 

 small limits, but the variations are quite independent of 

 the geographical distribution and in some cases I believe 

 that the variations are really due to distortion of the 

 parts after death. The long-winged females (aethiopica) 

 occur only on the West Coast, but they are found side by 

 side with the medium-winged forms (fidvipes) which occur 

 also in East Africa ; the short-winged forms occur in 

 Abyssinia (abyssinica) and also in Togo. 



In Dr. Sjostedt's Kilimandjaro collections was found a 

 short-winged female with the ootheca protruding from the 

 end of the abdomen ; this ootheca was a thin-walled 

 membranous sac, carried with the suture directed to one 

 side and transparent so that the eyes of the contained 

 embryoes could be seen through the walls. The ootheca, 

 which thus differs very markedly from that of T. lucida, 

 Br., is probably deposited but a few hours before the 

 emergence of the young, and is thoroughly characteristic 

 of the sub-family Pseudomopinae. 



Hemithyrsorera neavei, sp. n. (PI. LXXX, fig. 14.) 



<$ . Differs from T. cirenmcinda in larger size, antennae testaceous 

 at base ; tegmina rufo-castaneous sometimes darker at base, 15-18 

 costals, otherwise venation the same ; left inflexed angle of 9th 

 abdominal tergite not dentate! y produced ; legs testaceous, the 

 extreme base of the coxae and tibiae and the apex of the tibiae 

 castaneous. 



5 . Very similar to short-winged E. African form of T. circum- 

 cincta {abyssinica) but larger and pronotum not bordered posteriorly 

 witli testaceous. 



