14 
Annals of the Transvaal Museum. 
shaft, which is curved ; branches gradually shorter towards base and apex, 
so as to form a straight line on under side ; each branch usually ends in 
2 bristles ; fore leg with a hairy process on inner side, as long as the tibia ; 
tibia with a short claw on outer side ; mid and hind tibiae with 2 short 
spurs only ; tarsae hairy ; abdomen shorter than hind wings, without 
any tuft and, like the thorax, clothed with long hair. 
Fore wing broad, triangular, with a nearly straight costa ; inner 
margin slightly arched at termen ; apex rounded ; tornus a little rounded ; 
2 from f lower median ; 3 from a little before lower angle ; 4 and 5 stalked 
for nearly \ 4, stalk from lower angle ; discocellular angled at middle and 
with a short veinlet from the angle into the cell ; cell over J the wing ; 
6 from well below upper angle ; 7 and 8 stalked till beyond J of 7, stalk 
from upper angle ; 9 and 10 stalked for about the same length and from 
upper median at J ; 9 bending to stalk of 7-8 and anastomosing with 
the free part of 8 for about \ length of 8, so as to form an areole about 
3 times longer than broad ; 11 from upper median at -§ and anastomosing 
at for its whole length with 12, which otherwise runs parallel to the 
costa. 
Hind wing triangular and large ; costa straight ; termen rounded 
and with a small lobe at 2 to 3, and lb to 1c ; inner margin much rounded 
at middle ; apex and tornus well rounded ; la long and curved ; lb 
straight ; 1c iaintiy represented ; 2 from beyond J the lower median ; 
3 from beyond § 2 to 4 ; 4 from lower angle ; 5 as far irom 4 as 4 is from 3 ; 
discocellular only represented as a veinlet into the cell for J its length, 
beginning at vein 5 ; 6 and 7 on a stalk of about J ; 8 anastomosing with 
the upper median at before J for a short distance. Aurivillius, m his 
“ Key,” l.c. p. 67, states that the two species, quadripuncta and dregei, 
have to come in the genus Orgyia Ochs., but after examining 0. antiqua, 
the type of the genus, I found that Bracharoa differs from Orgyia in many 
respects. Bracharoa has no abdominal tuft ; Orgyia has vein 11 quite 
free, while 7 and 8 of same wing are on a very short stalk and veins 4 and 5 
are quite separate and rather far apart at origin. The hind wing of Orgyia 
is distinctly closed by a transverse vein, originating from about § of the 
veinlet in the cell. 
It is true, however, that B. dregei is not quite a typical Bracharoa , 
as it has also vein 11 of fore wing free and veins 7 and 8 on a shorter 
stalk, but otherwise it agrees with the structural characters of quadri- 
puncta , and is more a Bracharoa than an Orgyia. 
I consider Bracharoa as a development of Orgyia. Orgyia has no 
representatives in South Africa as far as I know. 
1. a. Ground colour of fore wing light orange-vellow (III) ; 
hind wing with terminal area fuscous quadripuncta. 
b. Ground colour of fore wing cinnamon-buff (XXIX) ; 
hind wing entirely suffused with fuscous dregei. 
Bracharoa quadripuncta, Wilgrn., CEfv. Yet. Ak. Fork., p. 99 (1875). 
Aroa bistigmigera, Butl., P. Z. S., p. 847 (pi. CLII, fig. 7) (1896). 
Hmpsn., Ann. S.A. Mus., p. 392 (1905). 
Hab. Pretoria (IX, II, Janse ; III, Swierstra ; Dr. Brever). 
Potchefstroom (X, Miss Lion-Cachet). 
