of the Genus Teracolus, Swains. 497 



should no more regard them as synonymous (as Mr. Marshall 

 has done) than I should Ganoris brassier and rapce. T. pseud- 

 acaste ranges due southwards, whereas T. eupompe appears to 

 follow the north-eastern coast, crossing over from Somaliland 

 to Aden. 



71. Teracolus eupompe. 



Pontia eupouipe, King, Symb. Phys., Ins. pi. vi. figs. 11-14 (1829). 

 AnthopsycJw theopompe, Folder, Reise der Nov., Lep. ii. p. 183 (!()">). 

 Anthopsyche anteupompe, Felder. t. c. p. 184 (1805). 

 Anthopsyche dedecora, Felder, ibid. 



Ranges from the White Nile and Abyssinia south-eastwards 

 to Somaliland, and thence across the straits to Aden. 



This species in all its phases can easily be distinguished 

 from T. pseudacaste by the great reduction of all the black 

 markings on the under surface of the wings, the subapical 

 spots on the primaries and the discal spots crossing the 

 secondaries being almost or wholly obliterated, whilst the red 

 subapical stripe and the red discal spots on the under surface 

 of the secondaries in the feir.ale are strongly emphasized. 

 The wet-season form is T. eupompe. = anteupompe ; the inter- 

 mediate phase is T. tJieopompe, having a dry-season upper 

 surface, but a white under surface; whilst T. dedecora, in 

 which the apex of primaries and the secondaries below are 

 rosy, is the dry-season phase. The two latter undoubtedly 

 fly together, and in Aden it is tolerably certain that all the 

 phases emerge at the same time as mere variations, which 

 only become seasonally fixed in a more variable climate. 



72. Teracolus dulcis. 



Teracolus dulcis, Butler, P. Z. S. 1876, p. Io7, pi. vii. fig. lt>. 

 Teracolus dirus, Butler, t. c. pi. vii. tig. 11. 

 Teracolus eboreotdes, Butler, t. c. p. Io8, pi. vii. fig. 12. 

 Teracolus immaculatus, Swinhoe, P. Z. S. 1884, p. 44'}. 

 Teracolus mbroseus, Swinhoe, t. c. pi. xl. figs. ft, 7. 

 Teracolus alberta, Swinhoe, Ann. & Mag. Nat. Hist. ser. 6, vol. v. p. -io(3 

 (1890). 



Appears to range from Karachi to Bushire ; and one male 

 in the British Museum series is said to have been obtained 

 at Aden, but this 1 consider very doubtful. 



As 1 do not admit the identity of T. pseudacaste with 

 T. eupompe, still less can I agree to this purely Asiatic 

 species being the same. As a rule, it may be distinguished 

 at a glance by its narrower and internally arched apical 

 carmine patch, but occasionally a male with a fairly broad 

 patch does occur, though 1 believe never a female. Another 

 point is that T. duJcis has the base of the primaries bid . \v 



