Catalogue of North American Sphinges. 289 
Family V.—Zygeeniade. 
Antenne arcuated, abruptly thickened and curved beyond the middle, Palpi 
generally elongated, sometimes short, not pressed to the face, hairy at base, with 
the terminal joint scaly or almost naked. Wings narrow, opaque, often spotted, 
the hind-pair rather small. Abdomen more or less cylindrical, obtuse, and not 
tufted atthe end. Flight diurnal. Larvae short, contracted, variegated with spots, 
slightly hairy, and not horned on the tail. 
Genus XIV.—Mastigocera. 
: Wings long, narrow, entire, opaque, the hind-pair quite small. Antenne simple 
in both sexes, filiform at base, suddenly thickened and fusiform beyond the middle, 
very much attenuated towards the tip, and ending in a long curved point. Labial 
palpi somewhat curved, extending considerably beyond the clypeus, separated, 
Side into a little tubercle. Legs long and slender; posterior tarsi laterally com- 
Pressed, and hairy on the outside, in the males, 
Family VI.—Glaucopidide. 
Antenne slender, almost setaceous, or very slightly thickened in the middle, and 
distinetly bipectinated beneath in the males. Palpi slender, more or | longated, 
at pressed to the face. Wings sometimes narrow, and sometimes widened, en- 
fire, and for the most part opaque. Abdomen nearly cylindrical, and frequently 
at the end. Flight diurnal, Larve cylindrical, hairy, without a caudal horn. 
Genus X V.—Procris. 
i 
‘0 nearly naked. ‘Tongue short, but distinct, and spirally rolled. Abdomen 
Sender and nearly cylindrical in the males, thicker in the females, and tufted at 
nd. Spurs of the hind tibiw two in number, and very minute. 
Genus X VI.—Glaucopis. 
“urved. Tongue moderate, spirally rolled. Caudal tuft minute or wanting in the 
steater number, Posterior tibiae with three or four spurs of moderate size. 
h From this Synopsis it will be seen that the divisions and arrangement which I 
= adopted, differ somewhat from those of the entomologists of the present time. 
® affinities or resemblances of the Lepidoptera, in their different states, are so 
