322 



ARCTIAD^. 



1826. Acantharctia flavicosta. (Plate XLYI. fig. 21.) 



Amsacta flavkosta, Hmpsn. Ann. S. Afr. Mus. ii. p. 53 (1900). 



(S . Head orange; palpi black above; anteunre with the branches 

 black ; thorax white, the tegulse and patagia edged with yellow ; 

 tibice and tarsi fuscous above ; abdomen orange, with dorsal black 

 bands and lateral series of points. Fore wing white, the costal 

 area and cilia orange ; the inner margin yellowish. Hind wing 

 white ; the cilia orange at apex. 



Hah. Mashonaland, Salisbury (Marshall), 5 c? type. Exjy. 38 

 millim, 



*1827. Acantharctia nivea. 



Acantharctia nivea, Auriv. Eat. Tidskr. 1899, p. 242. 



c? . Pure white ; palpi yellowish, black above ; frons orange ; 

 vertex of head and tegulaj with some orange ; antennae with the 

 branches blackish ; pectus and legs yellow and brown ; abdomen 



fig. 145. — Acantharctia nivea, (^ . ]. 



orange dorsally banded with black and with black lateral stri]<es ; 

 wings thinly scaled ; fore wing with the costa and inner margin 

 yellowish. 



JIab. Congo, type f c? in Mus. Stockholm. Kvjy. 36 millim. 



Genus AMSACTA. 



Amsacta,VfYk. ir. 804(1855) 



Type. 



marginalis. 



Proboscis aborted, minute ; palpi porrect to just beyond the frons and fringed 

 below with long hair ; frous usually clothed with rough hair ; fore tibia with 

 a more or less developed curved claw on inner side and short claw on outer; 

 hind tibiae with one pair of spurs.* Fore wing with vein 3 from close to angle 

 of cell ; 4, 5 from angle; t> from upper angle; 7, 8, 9, 10 stalked ; 11 free. 

 Hind wing with veins 3, 4 from angle of cell ; 5 from just above angle ; 6, 7 

 from upper angle or shortly stalked ; 8 from middle of cell. 



Sect. I. Antennaj of male bipectinate. 



A. Fore wing red-brown, with the margins orange marginalis. 



13. Fore wing with the ground-colour white tinged with 

 yellow or pink. 

 a. Fore wing with broad fuscous fascice in the inter- 

 spaces melanogastra. 



* In A. gangara, cardinalis, lactinea, and nrgrita the medial spurs are 

 usually present, though very minute. 



