458 Dr. A. G. Butler—A 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, pl. xxiii. figs. 7, 8 
(1862). 
Callosune pseudetrida, Westwood, in Oates’s Matabeleland, p.340 (1881). 
Teracolus cinctus, Butler, Ann, & Mag. Nat. Hist. ser.5, vol. xii. p. 105 
(1885). 
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 Z. cinctus, and the 
female is described as having a subapical yellow fascia, whilst 
the female of 7. 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 7. 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 7’. lats and 7. dnfumatus, 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. ZS. 1896, p, 128, pl. vi. figs. 5, 6, 
Ranges from the Victoria Nyanza due south to Nyasa. a 
This species in its wet-season form is like a large and very — 
heavily marked form of 7. 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 TY. datra group, in which the dry-season form has a — 
sinilar character. 
