OBGTIA. — AEOA. 437 



961. Orgyia viridescens, Wlk. Cat. iv, p. 798; C. %■ 8. no. 878. 



<5 . Differs from postica in the vertex of thorax and base of 

 fore wing being pale-spotted ; the ante- and postmedial lines widely 

 separated below the cell, and the space between them much more 

 shot with bluish green and purple ; the submarginal line with a 

 wbite lunule on it near outer angle. Hind wing paler, with 

 traces of a postmedial curved line. 



Hob. Ceylon. Exp. 30 millim. 



962. Orgyia turbata, Butl. Trans. Linn. Soc. (2) i, 1879, p. 560. 



cJ • Head, thorax, and abdomen brown and grey. Fore wing 

 brown suffused with orange; indistinct dark waved subbasal, ante- 

 medial, and postmedial lines, which approach each other towards 

 inner margin ; an indistinct dark patch at end of cell ; orange 

 patches at middle of cell, apex, and outer angle. Hind wing red- 

 brown. 



Hab. Karen Hills ; Malacca. Exp. 24 millim. 



Genus AROA. 



Aroa, Wlk. Cat. iv, p. 791 (1855). 

 Baziza, Wlk. Cat. xxxii, p. 398 (1865). 



Type, A. discalis, Wlk., from S. Africa. 



Range. S. Africa ; China; throughout India, Ceylon, and Burma; 

 Java. 



Flight diurnal : differs from Orgyia in the palpi being much 

 longer and not so heavily fringed with hair, the 3rd joint promi- 

 nent ; legs not so hairy. Female with fully developed wings ; the 

 branches of antennae shorter than in the male. 



963. Aroa maxima, Hmpsn. III. Het. ix, ined., pi. 159, fig. 9. 



c$ . Head, thorax, and abdomen dark brown ; antennae with 

 the shaft pale at sides. Fore wing black-brown ; the cell pale 

 with a black speck on a pale patch at the end of it ; traces of a 

 curved submarginal line ; cilia chequered dark and lighter brown. 

 Hind wing smoky black, with a white fascia from the base to beyond 

 end of cell ; the cilia pale. Underside of both wings with a 

 prominent cell-spot and the discal area pale. 



Hab. Ceylon. Exp. 52 millim. 



964. Aroa major, Hmpsn. III. Het. ix, ined., pi. 159, figs. 3, 5. 



3 . Differs from maxima in the head, thorax, and fore wing- 

 being ochreous brown. Fore wing with no pale fascia in the cell ; 

 the black speck on a white patch much more prominent, as also is 

 the submarginal line which is incurved between veins 2 and 3. 

 Hind wing greyish fuscous, except the costal black area. Under- 

 side whitish. 



