258 NOVITATBS ZOOLOGICAE XXIII. 1916. 



19. Polyptychic consimilis R. & J. (1903) 



We described this species from a male in the British Museum, obtained on the 

 Atbara R., and we placed here also a somewhat different second male from Konakry 

 Island, in the Paris Museum. We have now examined four more examples, all 

 males. These six specimens known to us represent three geographical varieties, 

 which differ from one another especially in the organs of copulation. The female 

 is still unknown. 



a. P. consimilis consimilis R. & J. (1903) 



8- The forewing, above, has a clayish cloud at the distal margin almost 

 extending to the outer discal line ; the cloud is rounded proximally, being widest 

 in front of the centre of the distal margin. The tenth tergite is very slender. 

 The dorsal process of the clasper is straight, and very little curved inward (cf. 

 Revision of Sphingidae, p. 250) ; the dorsal margin of the clasper not distinctly 

 widened. 



Hab. Atbara R., in Mus. Brit. 



b. P. consimilis ancylus subsp. nov. (text-figs. 10, 11) 



Polyptychic consimilis Rothschild & Jord, Nov. Zool. ix. Suppl. p. 251 (1903) (Konakry). 



8 . The clayish limbal cloud described above is absent. The tenth tergite is 

 broader than in P. c. consimilis ; the dorsal process P 1 of the clasper longer and so 

 strongly curved inward that it almost stands at right angles to the plane of the 

 clasper (text.-fig. 10, lateral view, and text-fig. 11, dorsal view) ; the ventral process 

 P 2 is narrower than in consimilis, and the dorsal margin of the clasper is strongly 

 dilated (L). 



Hab. Gambaga, Gold Coast, type in Mus. Tring, and Konakry I., Mus. Paris. 



c. P. consimilis prionites subsp. nov. (text-fig. 12) 



8 . The lines of the wings on the whole rather more sharply marked than in 

 both previous subspecies, and the proximal discal line of the forewing rather less 

 strongly curved in S-shape ; no limbal clayish patch. The tenth tergite is slender 

 as in P. c. consimilis. The dorsal process P 1 of the clasper (text-fig. 12) even 

 longer than in P. c. ancylus, very strongly curved inward and conspicuously dentate; 

 the ventral process P 2 narrower than in P. c. ancylus and less chitinised ; the 

 dorsal margin of the clasper very moderately widened (L). 



Hab. Upper Chari R., Lake Tchad, type in Mus. Tring ; also a male from 

 Jebba, Niger, in Mus. Brit. 



20. Polyptychic calcareus R. & J. (1907) 



Described from a discoloured 8 from Masasi, German East Africa, close to the 

 Portuguese frontier. A ? in the Tring Museum, from Mlanje, Nyasalaud, March 1 7, 

 1913, evidently belongs to this species. It agrees in colour with P. neavi Hamps. 

 (1910), except in there being hardly a trace of a fuscous median band on the fore- 

 wing, and in the cilia of both wings being fuscous instead of red. 



