468 Dr. A. G. Butler A Revision 



The female wrongly referred to T. halyattes is referable to 

 typical T. ithonus (the smaller dry-season form). 



60. Teracolus achine. 



Papilio achine, Cramer, Pap. Exot. iv. pi. cccxxxviii. E, F (1782). 

 Teracolus simplex, Butler, P. Z. S. 1876, p. 148. 



Ranges from the Cape to Natal, the Transvaal, and appa- 

 rently northward as far as Nyasaland. 



The wet and intermediate forms of this species have a well- 

 defined internal stripe on the upper surface of the primaries ; 

 the apical patch in all the phases is bright vermilion, with a 

 crimson tinge, but on the under surface the subapical orange 

 bar is weak and diffused ; in the intermediate and dry-season 

 forms the under surface of the secondaries is irrorated and 

 striated with grey upon a pale pink ground ; the dry-season 

 form (T. simplex) differs in having no internal blackish stripe 

 on the primaries and no costal stripe on the secondaries of 

 the male, and in the feebleness of all the other blackish 

 markings on the upper surface. 



Subspecies Teracolus Trimeni. 



Teracolus Trimeni, Butler, P. Z. S. 1876, p. 150. 



Callosune ramaquebana, Westwood, in Oates's Matabeleland, p. 341, 



pi. E. fiffs. 6, 6 (1881). 

 Teracolus fumidus, Swinhoe, P. Z. S. 1884, p. 442, pi. xl. figs. 4, 6. 



A representative form of T. achine apparently confined to 

 the Eastern side of Africa from the Transvaal northward as 

 far as Manboia. The typical (wet-season) form is generally 

 more heavily marked above with black than in T. achine, the 

 male even sometimes showing traces of the angular black 

 band on the secondaries characteristic of the female ; on the 

 under surface also, which is more creamy in tint than in 

 T. achine, this angular band is sometimes indicated in saffron- 

 yellow. T.fumidus (of which T. ramaquebana is the female) 

 is merely a starved form of the subspecies. The dry-season 

 form is less strongly marked than in that phase of T. achine, 

 and is characterized by the usual rosy coloration on the under 

 surface. Of our eighteen examples of this subspecies no less 

 than sixteen were obtained in the Transvaal, nine of which 

 were received in the Godman and Salvin collection. 



T. ramaquebana, curiously enough, is referred by Mr. Guy 

 A. K. Marshall to the synonymy of his heterogeneous 

 " T. evagore," one of the most singular combinations of dry- 

 and wet-season forms, of species belonging to widely different 

 sections of the genus, which have been associated together 



