ME. A. G. BUTLER ON THE SPHINGID.E. 553 



Port Natal {Plant, Gueinzius) ; Sierra Leone (Morgan). B.M. 



Wallengren (6fV. Vet. Akad. 1871, p. 913), publishes his opinion that his C. trans- 

 figurata is =_B. idricus. 



Genus 10. Gnathostypsis, Wallengren. 



G-nathostypsis , Wallengren, Ofvers. Kongl. Vetensk-akad. Forhandl. 1858, p. 137. 



Allied to Clmrocampa. Antennae with recurved apex, furnished with a fasciculus of 

 rigid hairs. Palpi ascending, forming a projection in front of the head as in Chcerocampa, 

 hairy; last joint large, acicular, pilose, robust; intermediate joint laterally compressed, 

 with a slender fringe of hairs separated from the last joint by an interval destitute of 

 hairs on its outer edge. Proboscis long, not concealed. Head porrect ; vertex convex, 

 crested. Thorax sloping from the vertex, very convex on the dorsum, smooth, with the 

 pterygodes appressed. Abdomen thick. Form of the wings almost as in Chcerocampa, 

 but broader ; primaries with the apex not falcate, external angle more rounded ; second- 

 aries with outer margin not excised. 



Gnathostypsis ostkacina. 



Gnathostypsis ostracina, Wallengren, Wien. ent. Mon. iv. p. 42. no. 43 (1860) ; Kongl. Svensk. 

 Vetensk.-Akad. Handl. v. p. 19. no. 1 (1863). 



Caffraria. 



Genus 11. Diodosida, Walker. 



Diodosida, Walker, Lep. Het. viii. p. 163. gen. 19 (1856). 



1. Diodosida mufjna. 



Diodosida murina, Walker, Lep. Het. viii. p. 163. no. 1 (1856). 

 Darapsa marginata, var. /S, Walker, I. c. p. 185. no. 5 (1856). 



S , Port Natal (Stevens, Gueinzius). Type, B.M. 



2. Diodosida marginata. 



Darapsa marginata, Walker, Lep. Het. viii. p. 185. no. 5 (1856). 



<S 2 , Port Natal (Gueinzius). Type, B.M. 



Very distinct from the preceding, but unquestionably belonging to the same genus. 



3. Diodosida fumosa. 



Zonilia fumosa, Walker, Lep. Het. viii. p. 193. no. 3 (1856). 



Congo (Richardson). Type, B.M. 



The palpi in this species are rather long for the genus, and the prothorax is rather 

 prominent; but the distinctions are scarcely sufficiently well marked to warrant its 

 generic separation. 



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