Annals of the Transvaal Museum. 
3 
this comes directly the peculiar genus Micraroa, and the Homochira- and 
AArowm-branches. Pteredoa develops from N aroma, while Homochira 
gives rise to Euproctis, from which comes the genus Porthesia. 
Porthesia. 
Euproctis. 
X 
Key to the South African Genera. 
1. a. Fore wing without an areole 2. 
b. Fore wing with an areole* 13. 
2. a. Fore wing with vein 10 free out of upper 
median 3. 
b. Fore wing with vein 10 out of stalk of 
8 and 9 4. 
3. a. Hind wing with vein 6 and 7 stalked ; 
3 as far from 4 as 4 is from 5 ; vein 8 
anastomosing with upper median ; 
fore wing with stalk of 7 nearly half 
the vein in length 27. Pteredoa, p. 65. 
b. Hind wing with vein 6 and 7 from a 
point ; vein 3 nearly twice as far 
from 4 as 4 is from 5 : 8 touching 
upper median, but not anastomosing 
with it ; fore wing with stalk of 7 
over half 26. N aroma, p. 64. 
In O. flabellaria the areole may be absent ; in Bazisa the areole is not quite closed. 
