KOVITATES ZOOLOGICAB XXIII. 1916. 



257 



(cf. Revision, pi. 24, fig. 5). The dorsal process of the valve (text-fig. 7, pd) 

 slightly smaller than in xanthopis; the harpe (ha) always with two long teeth at 

 the apex, and usually with several small ones along the ventral margin. 



17. Leucophlebia neumanni Roths. & Jord. (1903) 



This species has a uniformly red abdomen. The S is not yet known. Since. 

 describing the species from two ? ? we have received a third 2 , from the Blue 

 Nile, collected by Mr. Gorringe. This specimen is somewhat smaller (length of 

 forewing : 29 , 5 mm.), and the yellow central stripe of the forewiug is broader. 



18. Polyptychus assimilis R. & J. (1903) (text-fig. 9) 



Polyptychic grayi assimilis Rothschild & Jord., Nov. Zool. ix. Suppl. p. 242. no. 197. b (1903). 



We described assimilis from a female in the Berlin Museum which was 

 found at Rietfoutein in German South- West Africa, and also placed under this 



Fig. 9. — Harpe of Folyptychus assimilis. 



name a second female contained in the Staudinger collection, from Bechuanaland. 

 The structure of the genital armature was not examined. 



We have since received a male from Tsumeb, German South-West Africa, 

 which is evidently the same species as the above females. The genitalia being- 

 more different from those of P. grayi than one would expect them to be, if assimilis 

 were a subspecies of P. grayi, we now consider assimilis to be a separate species. 



P. assimilis is ashy grey, without the clayish tone which is usually so pro- 

 nounced in P. grayi, especially in the female. The forewing is narrower than in 

 P. grayi, but the hind angle more produced ; the blackish limbal area also is 

 narrower. The subbasal dot, which is large in the male and small in the female of 

 assimilis, is very variable in P. grayi, being in this species sometimes large, 

 sometimes small, and either simple or double. 



The tenth tergite is almost the same as in P. grayi, ending in two small sharp 

 points. The harpe of the claspers is forked at the apex, the one long apical process 

 found in P. grayi being replaced by two short processes (text-fig. 9). 



In P. digitatvs Karsch (1891), another species closely allied to P. grayi, the 

 harpe ends in a long linear process, which is hairy on the upperside and obliquely 

 truncate-acuminate at the apex. 



