66 
Annals or the Transvaal Museum. 
joint only J of second joint ; eyes large, over width of frons, rounded ; 
frons rounded and covered with moderate hair ; antennae less than \ of 
costa, curved evenly downwards and then upwards at tip, bipectinate ; 
branches moderate, about 6 times shaft, each ending in a long bristle ; 
the branches get suddenly shorter towards tip ; in $ the antennae are 
only J of costa, the branches are 3-4 times shaft, and the bristle is very 
short ; in both sexes the basal joint of the antennae has a moderate tuft 
of hair ; abdomen moderately covered with hair and without crests ; legs 
with scales and hairs ; fore legs with the process a little longer than the 
tibia, somewhat twisted, broad, and with a curved point ; in the $ the 
process is shorter and very thin ; mid and hind tibiae with the 2 terminal 
spurs only, which are of equal length. 
Fore wing sub -triangular, in $ semicircular ; costa slightly arched ; 
termen and inner margin well rounded ; tornus much rounded ; 16 simple 
at base ; 2 from § lower median ; 3 from £ 2 to 4 ; 4 from lower angle ; 
5 from 4 as far as 4 from 3 ; discocellular faint ; cell a little longer than 
J the wing ; 6 from below upper angle ; stalk of 7, 8, 9 from the angle ; 
7 from J of 8 ; 9 from £ of 8 ; 10 from upper median as far from the stalk 
as 6, parallel to stalk and 9 ; 11 from lower median at f, parallel to 12 ; 
12 parallel to costa for £ of its length. 
Hind wing semicircular ; costa nearly straight ; termen, inner margin, 
apex, and tornus much rounded ; 1 a rather long ; 16 somewhat curved ; 
2 from a little beyond J lower median ; 3 from £ 2 to 4 ; 4 from lower 
angle ; 5 from 4 as far as 4 is from 3 ; discocellular indistinct ; cell as 
long as J of wing ; 6 and 7 stalked for J and from upper angle ; 8 anasto- 
mosing with upper median for nearly 
Species in South Africa : — 
1. a. Fore wing with an orange rounded spot at end of cell. . monosticta. 
6. Fore wing with no spot in cell 2. 
2. a. Vertex of head white ; fore wing with vein 6 from angle 
of cell ; hind wing with vein 5 from just above the 
angle usebria. 
6. Vertex of head orange ; fore wing with vein 6 from 
below angle of cell ; hind wing with vein 5 from well 
above the angle plumosa . 
Pteredoa monosticta, But!., P. Z. S. L., p. 428, pi. XXXII, fig. 7 (1898). 
Euproctis monosticta , Hmpsn., Ann. S.A. Mus., p. 408 (1905). 
Hab. Pretoria (II, Munro ; bred). 
Johannesburg (II, Platt). 
Waterval Onder (XI, Janse). 
Pinetown (I, Leigh). 
Durban (I, II, IV, Leigh). 
I have not seen usebria nor plumosa, but I have no doubt that mono- 
sticta is rightly placed in this genus, though Hampson places it in 
Euproctis . The ten specimens I examined show great constancy in the 
running of vein 10 of fore wing and none have a tendency to form an 
areole. The only characters m which monosticta does not fit with the 
