458 Dr. A. G. Butler .4 Revision 



sexes below are alike, with grey-speckled rosy apical area to 

 primaries and rosy secondaries, showing traces of an angular 

 discal series of dusky spots, one or two of which are more or 

 less prominent on the upper surface of the female ; the apical 

 patch in this sex is dark brown, with a curved subapical 

 series of indistinct orange spots. 



38. Teracolus pallene. 



Anthocharis pallene, Hopffer, Peters's Reise, p. 358, pi. xxiii. figs. 7. 8 



(1862). 



Callosunepseudetrida,Westwood, in Oates's Matabeleland, p. 340 (1881). 

 Teracolus cinctus, Butler, Ann. & Mag. Nat. Hist. ser. 5, vol. xii. p. 105 



(1883). 



I believe that these are synonymous, although the descrip- 

 tion of the under surface of Westwood's type does not corre- 

 spond in every detail with that of T. cinctus, and the 

 female is described as having a subapical yellow fascia, whilst 

 the female of T. cinctus has the apical area black, crossed by 

 ill-defined narrow ochreous dashes. Still I believe that 

 variation may account for these discrepancies. One thing is 

 certain, Westwood's insect must belong to the T. daira 

 group, and not to the singular mixed community in which 

 Mr. Marshall has placed it, for it undoubtedly has the orange 

 apical patch of the male black-bordered internally. Assuming 

 that the above synonymy is correct, the species must be inter- 

 mediate between T. lais and T. mfumatus, and must range 

 from the Victoria Nyanza southward to Nyasaland, and 

 thence to Tete on the Zambesi. The intermediate form has 

 the under surface washed with warm buff, and the dry-season 

 form is small, with narrower black borders, the black internal 

 streak ill-defined, and the secondaries rosy on the underside. 



39. Teracolus infumatus. 

 Teracolus infumatus, Butler, P. Z. S. 1896, p. 128, pi. vi. figs. 5, 6. 



Kanges from the Victoria Nyanza due south to Nyasa. 



This species in its wet-season form is like a large and very 

 heavily marked form of T. pallene, to which it is undoubtedly 

 allied ; but the intermediate-season form (of which we have a 

 male from Lake Tanganyika) has the apical patch of orange 

 more extended on the costa and not bordered internally by a 

 black bar. This fact brings the species somewhat nearer to 

 the T. daira group, in which the dry-season form has a 

 similar character. 



