THE 
TRANSACTIONS 
EKNTOMOLOGICAL SOCIETY 
LON DON 
POR THE YEAR 16614 
I. Descriptions of new Genera and Specics of Heterocerous 
Lepidoptera from Japan. By Arruur G. Burier, 
Mast) FA-8.; &e: 
[Read February 2nd, 1881.] 
SPHINGES ann BOMBYCES. 
Tux species described in the present paper are chiefly 
from the collection made by Mr. Montague Fenton at 
Tokei; to these I have added a series forwarded by 
Mr. Pryer from Yokohama, and a few species obtained 
by Mr. Maries at Nikko. 
SPHINGIDA. 
CINoGoN, n. g. 
Allied to Pterogon, Boisd. (Proserpinus), but the pri- 
maries not angulated as in that genus, their form being 
almost that of Pergesa, but narrower, and with shghtly 
undulated outer margin; secondaries also very like 
Pergesa, but with more acute apex, and with slightly 
undulated margin ; antenne not hooked at the extremity, 
terminating in a small pencil of hair, more slender than 
in Pergesa; character of markings as in Pterogon and 
allied groups. Type, C. cingulatum. 
TRANS. ENT. Soc. 1881.—pParRT I. (APRIL.) B 
