270 
AA . Club’of antennae flattened. 
a. Silver,spots on under side of„ wings. 
aa. No silver’spots. 
b. Fore wings sinuous. 
bb. Fore wings not sinuous . 
AAA. Club of antennae not flattened. 
a. Eyes hairy. 
6. Golden or silvery spots on under side of hind wings. 
bb. No golden or silvery spots on under side of hind wings. 
c. Palpi very hairy ; apex of fore wings truncate. 
cc. Palpi slightly hairy ; apex of fore wings scarcely angular. 
aa. Eyes naked. 
b. Apex of fore wings rounded , hind wings slightly dentate. 
c. Antennae terminating abruptly in large obconic club. 
cc. Antennae terminating insensibly in a club. 
d. Wings without eye spots. 
dd. Wings with eye spots. 
c. Color not uniform, fore wings slightly dentate. 
ec. Color uniform, wings entire. 
eec. Color nearly uniform, hind wings dentate, marbled beneath 
bb. Apex of fore wings strongly angular ; palpi very long. 
Argynnis. 
Euptoieta. 
....Melitsea. 
....Qrapta. 
... Vanessa . 
Pyrameis. 
. Junonia. 
.... Limenitis. 
. Apatura. 
Neonympha. 
. Satyrus. 
. Libythea. 
Family 3 —Lyc^enid^;. 
A. Color brown or blue, two tails to the hind wings, under side marked with wavy stripes.. Theda. 
B. Color fulvous. ‘ ™ 
. Chrysophanus. 
C. Color blue or blackish, gray beneath ; hind wings often with one tail. Lycxna. 
Family 4—HesperiDjE. 
A. Knob of antennae thick ovoid or elongate ovoid. 
a. Hook much contracted, pointed, nearly half as long as the knob. Pamphila. 
aa. Hook slender conical. '.Amblyscirtes. 
aaa. Knob rounded at tip, straight, or a little semilunar. Pyrgus. 
AA. Knob of antennae spindle-shaped. 
a. Palpi surpassing the front by more than the length of the eyes; gray below. Thanaos 
aa. Palpi surpassing the front by about the length of the eyes; white below. Pholisora. 
aaa. Palpi surpassing the front by less than the length of the eyes; gray below. Eudamus. 
HETEROCERES—Moths. 
Family 1—Sphingid.e. 
A. Fore wings entire. 
a. Abdomen tufted at tip, wings transparent. 
aa. Abdomen not tufted at tip. 
b. Ground color olivaceous. 
c. Tongue as long as body. 
d. Fore wings with longitudinal white stripe . Deilephila. 
dd. Fore wings without longitudinal stripe. Philampelus. 
cc. Tongue half as long as body... Darapsa . 
bb. Ground color brown. Ceratomia 
bbb. Ground color gray. Macrosila , 
AA. Fore wings not entire. 
a. Fore wings excavated near the apex and posterior angle; hind wings yellow. Thyreus. 
aa. Fore wings dentate; tongue about as long as palpi. Smerinthus. 
Family 2 —vEgehid^:. 
Antennae gradually thickening nearly to the end. JEgtria. 
Family 3—Zyg.enid;e. 
A. Antennae not pectinate. 
a. Antennae thicker in the middle than at apex. Alypia. 
aa. Antennae slender, setaceous; fore legs densely tufted. Eudryat. 
