1884.] LEPIDOPTERA FROM THE LOWER NIGER. 225 



35. Deudorix, sp. 



A single specimen of a species apparently of this genus. We have 

 not been able to find a name for it ; but do not describe it from such 

 scanty materials. 



Papilionid^. 



PlERINvE. 



36. PONTIA ALCESTA. 



Papilio alcesta, Cr. Pap. Ex. t. 379. f. A. 

 Pontia alcesta, Trim. Rhop. Afr. Austr. p. 26. 

 Several specimens, agreeing with others from West and South 

 Africa. 



37. Terias, sp. 



Terias rahel. Trim. Rliop. Afr. Austr. p. 7Q (nee Fabricius). 



Several specimens of this species, to which we have not been able 

 to attach a name. It is evidently the T. rahel oilslx. Trimen's work, 

 but not the species so named by Fabricius, as Mr. Butler has pointed 

 out (Cat. Fabr. Diurn. Lep." p. 227). It has close allies in T. 

 pulchella of Madagascar, and T. floricola of Eastern Africa. 



38. Terias brigitta. 



Papilio brigitta, Cr. Pap. Ex. t. 331. f. B, C. 

 Terias brigitta, Trim. Rhop, Afr. Austr. p. 80. 

 Forbes's three specimens agree well with Cramer's figure of this 

 species. 



39. Terias, sp. 



Several specimens, which resemble T. senegalensis, Hiibn. ; but we 

 hesitate to pronounce them identical, the colour of the upperside 

 being paler and the markings of the underside very much less 

 distinct. T. desjardinsii is another allied South-African species. 



40. PlERIS CALYPSO. 



Papilio calypso, Drury, 111. Nat. Hist. ii. p. 29, t. 17. f. 3, 4. 

 Pieris calypso, Trim. Rhop. Afr. Austr. p. 38. 



A well-known West- African species, of which Forbes's collection 

 contains several examples. 



41. Pieris creona. 



Papilio creona, Cr. Pap. Exot. t. 95. f. C-F. 

 Pieris creona, Trim. Rhop. Afr. Austr. p. 31. 



This is another common African Pieris, of which Forbes's 

 collection contains a pair. 



42. Tachyris chloris. 



Papilio chloris, Fabr. Syst. Ent. p. 473, 

 Pieris chloris. Trim. Rhop. Afi . Austr. p. 28. 

 A pair. 



