26 
Annals of the Transvaal Museum. 
is also shorter as stalk of 7 and 8 is shorter and 9 anastomoses with the 
stalk just there where 7 comes out of it. 
Hind wing of broad, triangular ; costa much arched ; termen 
roundly lobed ah vein 2 to 5 ; inner margin straight ; apex and tornus 
rounded ; 1 a long, curved ; lb curved ; 2 from -§ lower median ; 3 and 4 
very shortly stalked or from lower angle ; 5 from just above the angle ; 
6 and 7 from upper angle ; discocellular slightly oblique ; cell § of wing ; 
8 much curved towards upper median at J, then touching it, and after 
that parallel to 7. 
Fore wing of $ has the costa arched ; vein 11 is given off at before 
J the areole, and not as in $ beyond \ of areole ; hind wing more semi- 
circular ; vein 3 and 4 on a longer stalk ; 6 and 7 on a short stalk. 
This genus comes, I think, quite close to Orgyia, from which it differs 
in having vein 5 much farther away from 4, and vein 6 from the upper 
angle in the fore wing ; the hind wing has 3, 4, and 5 far apart and nearly 
from equal distances, and 6 and 7 are on a long stalk ; the process of the 
fore leg of the is also quite different, more as in Euproctis ; the third 
joint of the palpi is absent and the $ is wingless. 
This genus also resembles Basychira very much, the neuration being 
very similar, except for the longer stalk of vein 7 of fore wing and the 
slightly longer stalk of 6 and 7 in hind wing and the difference in wing 
shape of both sexes ; palpi and process of fore tibia are also different, 
and the hind legs have also 4 spurs and not 2 as in Basycampa. It may 
be, however, that these two genera had the same ancestor. 
Dasycampa ianthina, nov. spec. (pi. Ill, figs. 3, 4). 
<J. Hans on head, thorax on under side, and hairs on fore tibia 
whitish, mixed with fuscous-black (XL VI) and deep chrome (III) hairs ; 
palpi, tarsae of fore legs and the whole mid and hind legs deep chrome ; 
thorax above and tegulae with whitish hairs mixed with fuscous-black 
and orange (III) scales ; scale tuft of thorax orange ; abdomen black, 
broadly ringed with deep chrome ; hairs of anal tuft and abdomen on 
ventral side deep chrome ; a basal dorsal tuft of black scales ; antennse 
brussels brown (III). 
Fore wing with the ground colour cinnamon-brown (XV) ; from inner 
margin to median fold pale purplish-vinaceous (XXXIX), becoming nearly 
white beyond postmedian line ; scattered pale purplish-vinaceous scales 
at basal and terminal area ; near base a fuscous black triangular patch 
with the point towards inner margin and with some pale purplish-vinaceous 
scales in it ; antimedial line of russet (XV) and fuscous scales, angled at 
lower median ; a triangular fuscous-black patch beyond it, with its base 
touching inner margin and with a few capucine yellow (III) scales in it ; 
reniform only represented by some fuscous-black scales, which extend 
towards costa and fill the angle of vein 3 and 4 ; postmedial line bordered 
with a light shade on outer side, near costa with a cream-coloured (XVI) 
patch : from median fold to inner margin with a whitish streak, angled 
at vein 5 to 4, then roundly curved inwards and waved at the veins ; sub- 
terminal line indicated by some pale purplish-vinaceous scales, beginning 
at costa with a small dark patch ; cilia of ground colour, mixed with 
whitish. 
