146 



ARCTIADJ^:. 



the 3rd joint minute; antennas of male bipectinate, of female serrate and 

 fasciculate ; tibiae with the spurs moderate ; abdomen dorsally clothed with 

 rough hair at base. Fore wing rather broad, with vein 3 from well before angle 

 of cell ; 4, 5 separate at origin ; 6 from upper angle ; 7, 8, 9 stalked ; 10, 11 from 

 cell *. Hind wing with the cell long ; vein 2 from long before angle ; 3 from near 

 angle ; 4, 5 from angle, shortly stalked or separate ; 6, 7 from upper angle ; 

 8 usually present as a more or less developed spur, not, or rarely, reaching the 

 costa. 



Sect. I. Antennae of male with long branches. 



A. Abdomen black, with the base and extremity crimson... duJcinfieldia. 



B. Abdomen crimson, banded with black notata. 



C. Abdomen without crimson bands or extremity. 



a. Fore wing with prominent series of white spots. 



a^. Vertex of head brown andensis. 



b^. Vertex of head whitish. 



a^. Fore wing wdth the groimd-colour dark. 



a^. Tegulai with central brown spot argentata. 



b^. Tegulae without central brown spot. 



a*. Fore wing with the grouncl-colour dark 



brown ingens. 



¥. Fore wing with the ground-colour blackish, al'ternata. 

 6^. Fore wing with the ground-colour yellow cart/cs. 



b. Fore wing without prominent series of white spots. 

 a\ Fore wing with obscure series of ]a]-ge white 



spots hicolor. 



b^. Fore wing without series of large white spots. 

 a^. Fore wing with the ground-colour bright 

 yellow. 



a^. Fore wing with red-brown bauds maculata. 



a*. Patagia with black points ; fore wing with 



the apex not produced alsus. 



b'^. Patagia without black points ; fore wing 



with the apex produced and acute margona. 



P. Fore wing with the ground-colour dull ochreous 

 yellow, 



a^. Abdomen suffused with ci'imson above rosetta. 



b^. Abdomen not tinged with crimson. 



a*. Fore wing without subterminal series of 



dentate spots atomosa. 



b*. Fore wing with subterminal series of dentate 

 spots. 

 «*. Fore wing with oblique series of dark 



marks from below apex to near base . . . lurida. 

 6*. Fore wing without oblique series of dark 

 marks. 

 a^. Hind wing with the inner and 

 terminal areas slightly marked with 

 fuscous. 

 a'. Fore wing with the subterminal 



spots very strongly dentate perdentata. 



b"^. Fore wing with the subterminal 



spots less strongly dentate sablona. 



b^. Hind wing with the terminal area 



suffused with fuscous ; wings narrow, sthenia. 



* In the males of one or two species vein 10 is rarely shortly stalked with 



7. 8, 9. 



