350 Mr. H. Druce on new 



the anal angle ; the female more opaque than in D. pana- 

 mensis, not ochre-yellow on the secondaries ; therefore this 

 female would answer to the female of " D. panamensis " 

 figured in the ' Biologia.' 



Staudinger's D. chagris is said to resemble his D. pana- 

 mensis in both sexes, excepting that it has a somewhat 

 broader black apical border and the under surface of the 

 primaries is white with yellow costal border. 



Staudinger's D. chiricana is a " self," the male citron and 

 the female ochre-yellow ; it corresponds exactly with a pair 

 so-named in the Hewitson collection *, which I am satisfied 

 are conspecific with D. florinda ; whilst Hewitson's third 

 example is gamboge-yellow, and therefore is intermediate 

 between D. anceps ? and D. chiricana $ . 



As another instance of variation in ground-colour in this 

 genus I may mention that I have no doubt of P. pedrosina 

 being a mere form of P. pafasfra, differing in having the 

 secondaries and costa of primaries on the under surface white 

 instead of yellow ; there is no other difference by which to 

 separate them. 



My D. pedrosina, therefore, will sink as a seasonal form or 

 a sport of D. palastra, Hopffer. 



XL1X. — Descriptions of some new Species of Heterocera from 

 2 topical Ajrica. By Herbert Druce, F.L.S. &c. 



Zygsenidae. 

 Saliunca, Walk. 



Saliunca ostia, sp. n. 



Male. — Primaries and secondaries uniform bright purplish 

 black ; primaries with a round white spot at the end of the 

 cell and one on the secondaries about the middle of the costal 

 margin ; the fringe of both wings black. Antennas, head, 

 thorax, and abdomen bluish black; legs black; the thorax 

 has two small white spots at the base. — Female very similar 

 to the male, but larger and without any white spot on the 

 secondaries. 



Expanse, <? 1£, ? 1^ inch. 



Bab. East Africa, Dar-es-Salaam (Mus. Druce). 



* Staudinger's " ochre-yellow '' I should call blight orange. 



