530 SYNTOMID^. 



. 1171. Ctenucha virginica. 



Sphinx virginica, Charp. in Esper's Exot. Schmett, ii. Suppl. pi. 2. ff. 3, 4 

 (1830) ; Stretch, Zyg. & Bomb. N. Am. i. p. 25, pi. i. f. 15 ; Kirby, Cat. 

 Het. p. 176. 



Ctenucha latreilliana, Kirby, Faun. Bor.-Am. lii. p. 305 (1837). 



Dark fuscous-brown ; head, thorax, and abdomen suffused with 



Fig. 278. — Cte7iucha virginica, (^ . \. 



blue ; base of palpi, vertex of head, neck, shoulders, and base of 

 patagia orange-yellow. Fore wing shot with blue at base. Hind 

 wing blackish slightly shot with blue. Cilia of both wings while 

 at apex and towards tornus. 



Ilab. Canada (Barnston) ; Nova Scotia (Redman) ; U. S. A., 

 Grote Coll., Zeller Coll. ^ap. 48-54 millim. 



Larva, Pack. Proc. Essex Inst. iv. no. 1, and Ann. N.Y. Acad. viii. p. 83. 



Egij. Hemispherical ; under microscope seen to be divided into 

 polygonal areas ; deep yellow in colour. 



Larva (adult, 18 millim.). Head light chestnut-red, blackish in 

 front ; body densely hairy and completely concealed when at rest 

 by the hair, which is of even length ; the hair overhanging head 

 and on sides black mixed with white ; the verticils on 1st and 2nd 

 somites white ; the dorsal hair bright yellow ; a series of nine 

 double dorsal medial tufts ; the 1st pair slightly longer and directed 

 forwards, the last pair backwards ; a broad irregular brown, some- 

 what scalloped, white subdorsal line; the infra-spiracular line 

 narrow, wavy, and snow-white. Fwd-plant, Grasses. 



1172. Ctenucha affinis. 



Ctemicha affinis, Druce, Biol. Centr.-Ara., Het. i. p. 83 (1884) ; id. ii. 

 pi. 73. f. 3. 



Head, thorax, and fore wing olive-black with a bluish tinge ; 1st 

 two joints of palpi, neck, and throat orange ; abdomen black shot 

 with blue. Fore wing with the cilia white at apex ; a wedge- 

 shaped white patch on terminal area below vein 2. Hind wing 

 black shot with brilliant blue ; cilia white at tips, 



Uah. Guatemala (C/iamjMO/i), 2 d , 2 § , type, Godman-Salvin Coll. 

 Exj). 34 millim. 



