37° 
The Moths and Butterflies 
humeral angle of the wing (Fig. 567); 
moths mostly with slender abdomen 
and rather broad delicate fore wings. 
Superfamily Geometrxna. 
II. Vein m 2 of fore wings more closely joined 
to cubitus than to radius, so that cubitus 
is apparently four-branched. 
J. Subcosta of hind wings distinct from 
radius, or the two fused for a very 
short distance near the base of the 
wing (Fig. 584). 
K. Day-flying moths that are black 
with large white or yellow patches 
on the wings, or with white front 
wings margined with brown, and 
having the hind wings pale yellow. 
(Wood-nymph moths.) Agaristid^e and Pericopid^e. 
KK. Not such moths. 
L. Ocelli absent; antennae pec¬ 
tinate. 
(Tussock-moths.) Lymantriid,e. 
LL. Ocelli present or, if absent, 
with simple antennae. 
(Owlet-moths.) Noctuid^:. 
JJ. Subcosta of the hind wings fused with 
radius for one-fifth or more of the 
length of the discal cell. 
K. Subcosta and radius of hind wings 
fused entirely or with only the tips 
separate (Fig. 591).. .Zyg^enid^e 
KK. Subcosta and radius of hind wings 
united for about one-half their 
length, or more, but usually 
separating before the apex of the 
discal cell (Fig. 597). 
L. Ocelli present. 
(Tiger-moths.) Arctiid^e. 
LL. Ocelli absent. 
(Footman-moths.) Lithosiid^e. 
GG. Frenulum absent; the humeral angle of the hind 
wings largely expanded and serving as a substitute 
for the frenulum (Fig. 600). 
H. Cubitus of both wings apparently four-branched 
(Fig. 600). (Tent-caterpillar moths et al.) 
Lasicocampid.e. 
HH. Cubitus of both wings apparently three- 
branched; robust moths with broad wings (Fig. 
603). (Giant silkworm-moths.) Saturniina. 
The jugate moths include but two families, the Micropterygidae and 
Hepialidae, both represented by but few species and these rarely met with 
