456 Colonel C. Swinhoe's Revision of the 



Aroa cometaris. 

 Aroa cometaris, Butler, Ann. Mag. N. H. (5), xix, p. 223 

 (1887). 

 1 $, Alu (type). 2 $, Guadalcanar Island, 



Aroa discalis 

 Aroa discalis, Walker, iv, 792 (1855). 



1 ^, S. Africa (type). 1 ^, Kilimanjaro. 1 ^, Zomba. 

 22 $, Natal, Mashonaland and Zululand. 



Kirby, p. 463, sinks dijficilis, Walker, to this species, but 

 dijficilis is a Dasychira. 



Aroa bistigmigera. 



Aroa Ustigmigera, Butler, P. Z. S., 1896, p. 847, pi. 42, 

 f. 7. 

 3 ^, Nyassaland, including the type. 2 ^, Zululand. 

 2 $, Port Ugowe. 2 ^, Basutoland. 2 $, Natal. 1 $, 

 Transvaal. 6 $, Neugia, Brit. E. Africa. 



Aroa dregei. 



Orqyia dregei, Herr.-Schaff., Ausser-Eur. Sclnnett., i, f. 114 

 (1854). 



2 $, Cape. 



Aroa melaxantha. 



Orgyia melaxantha, Walker, xxxii, 324 (1865). 

 1 $, Cape (type). 



Aroa substrigosa. 



Aroa suhstrigosa. Walker, iv, 794 (1855). 



Butler, 111. Het., v, p. 54, pi. 00, f. 5 

 (1886). 

 Aroa ijyrrhochroma, Walker, xxxii, 329 (1865). 



28 $, 5 $, from parts of North India and China, including 

 both types. 



Typical pyrrhochroma with its broad black outer marginal 

 band looks very distinct from typical suhstrigosa, which 

 has no band whatever, but I have received both forms and 

 any number of intergrades from the Khasia Hills, where 

 the species is quite common, and I am convinced that they 

 are both one and the same very variable form. 



