178 
Annals of the Transvaal Museum. 
situated as to form an angle with the first, nearest costa, and third 
spot ; fourth and fifth in a straight line, one underneath the other. 
A sub-marginal row of seven similar but slightly larger spots with 
the white edging less distinct. An indistinct marginal row of eight 
blackish spots externally edged with white dots. A suffused basal 
and a sub-basal black spot just below cell. 
Hind wing : One minute whitish spot at base in cell. A sub-basal curved 
row of four whitish dark edged spots. A sub -median row of three 
similar spots of which the middle one closes cell. A curved median 
whitish, externally dark edged, strongly dentated stripe and the sub- 
marginal indistinct row of forewing represented by minute elongate 
white spots between the veins. 
Cilia greyish brown, mixed with some whitish between veins. 
Allied to Ph. ihyra (Linn.) but easily distinguished from that species 
through its smaller hindmarginal border, and the larger apical patch of 
forewing. In the hindwing the hindmarginal border is represented by a 
deeply dentated streak, the apical patch is larger and not extending 
beyond the spot which close cell as is the case in Ph. thyra, also sufficiently 
distinguish Ph. dentatus from that species. 
Length of fore wing : 15 \ mm. 
One female from Waterval Onder (Dr. Breyer) in the Transvaal 
Museum. 
