The Moths and Butterflies 
3 6 9 
H. Subcosta and radius of hind wings fused nearly 
to end of the discal cell (Fig. 553). 
I. Small black moths. 
(Smoky-moths.) Pyromorphid^e (part). 
II. With long, curling, light-colored or brown 
woolly hairs 
(Flannel-moths.) Megalopygid^e. 
HH. Subcosta and radius of hind wings distinct 
or only slightly fused. 
I. Anal veins of fore wings anastomosing so 
as to appear as a branched vein (Fig. 552). 
(Bag-worm moths.) Psychid^e. 
II. Anal veins not anastomosing. 
J. Vein m 2 of fore wings arising from the 
discal cell nearly midway between 
veins m 1 and m 3 (Fig. 603). 
(Silkworm-moths.) Bombycid^e. 
JJ. Vein m 2 of fore wings rising from discal 
cell nearer to cubitus than to radius, 
so that cubitus appears four-branched 
(Fig. 548). 
(Carpenter-moths.) Cossid^e. 
EE. Hind wings with less than three anal veins. 
F. Fore wings with two distinct anal veins or with these two 
veins partly fused so as to appear like a single branched vein. 
G. The two anal veins distinct (Fig. 553). 
Pyromorphid^e (part). 
GG. The two anal veins partly fused and appearing like 
a single branched vein (Fig. 552). Psychid.e (part). 
FF. Fore wings with but one complete anal vein (rudiments of 
one or two others sometimes present). 
G. Frenulum present. 
H. Hind wings with subcosta and radius 
apparently distinct, but connected by a strong 
oblique cross-vein; moths mostly with narrow, 
long, strong front wings and small hind wings. 
(Sphinx- or hawk-moths.) Sphingid^e. 
HH. Hind wings with subcosta and radius either 
distinct .or fused, but not connected by an 
oblique cross-vein. 
I. Vein m 2 of fore wings closer to radius than 
cubitus, cubitus being apparently three- 
branched. 
J. Subcosta of hind wings extending 
from base to apex of wing in a regular 
curve (Fig. 560); moths with heavy 
abdomen and rather narrow strong 
fore wings. 
(The prominents.) Notodontid,e. 
JJ- Subcosta of hind wings with its basal 
part making a prominent bend into the 
