Catalogue of North American Sphinges. 293 
_ Ihave never seen but one specimen, which was much rubbed 
before it came into my possession. It is a female, with a very 
thick and robust body, and simple antenne, and probably is the 
North Americar representative of S. Tilia and Quercus. 
§ Alis integris, ano simplici. L. 
Genus II. Crratomia. H. 
I have been induced to propose a new genus for the reception 
of a single species, presenting characters, in the larva and winged 
state, which do not allow it to be included in the genus Sphinx 
aS now received. ‘The larva of this species, in the possession of 
horns on the fore-part of the body, exhibits a peculiarity which 
hitherto appears to have been unnoticed or- undescribed among 
the Sphinges. The name of the genus, derived from égarta, 
hor ns, and duia, the shoulder, alludes to this peculiarity. An 
analogous and still more imposing form is found in the larve: of 
the Phalene, belonging to the genus Ceratocampa. 
C. quadricornis. H. : 
Light brown ; fore-wings with zigzag and wavy brown and 
Whitish bands, dusky in the middle to the inner margin, the an- 
terior edge whitish, and a large white dot near the middle ; hind- 
Wings with three dusky transverse bands, and a broad blackish 
hind-border ; fringes dotted with white; head and a broad line 
®n each side of the thorax to the shoulders white ; shoulder- 
overs with three and abdomen with five longitudinal brown 
hes. Expands four anda half to nearly five inches. Larva 
Pale blue-green, longitudinally wrinkled, with a pair of short 
denticulated horns on the second segment, a similar pair on the 
third, two parallel series of little teeth on the first four segments, 
2 dorsal row of larger teeth extending to the tail, a long bluish 
Caudal horn, and seven narrow oblique white lines on each side 
of the body. It feeds upon the leaves of Ulmus Americana, 
and transforms in the earth. 
Genus Il. Spnrx. L. 
* Tongue-case of the pupa detached from the breast. 
1. S. cingulata. F. = Convolvuli. Smith—Abbot. 
Dark ash-gray, variegated with brown, body beneath white ; 
Middle of the hind-wings pink, with three or four black bands ; 
"ges of the wings spotted with white ; and five pink-colored 
“pots separated by short transverse black lines on each side of 
