208 
THE STUDY OF IHSECTS . 
B. Moths of medium or large size. p. 215. Hepialidas. 
BB. Minute moths, resembling Tineids in appearance, p. 214. 
MlCROPTERYGIDiE. 
AAA. Winged, fore and hind wings differing in form and venation; 
the radius of the hind wings being simple, although frequently 
apparently two- or three-branched ; this is due to the union of one 
or two branches of media with it (Figs. 241, 242). (Suborder 
Frenatcs .) 
B. Antennae of various forms, but never thread-like with a knob at 
the extremity* (moths in part). 
C. The fringe on the inner angle of the hind wings as long as, or 
longer than, the width of the wing; the hind wings often 
lanceolate, but never fissured, p. 246. Tineina. 
CC. The fringe on the hind wings shorter; the hind wings not 
lanceolate. 
D. Wings fissured. 
E. Each wing divided into six lobes, p. 238. ..Orneodida:. 
EE. Wings never more than four-lobed; usually the fore 
wings are bilobed and the hind wings trilobed. p. 237. 
Pterophoridac. 
DD. Wings not fissured. 
E. Fore wings very narrow, the width at the middle less 
than one fourth the length of the wing; a considerable part 
of the hind wings, and in many cases of the fore wings also, 
free from scales, p.259 . SESHDiE. 
EE. Wings scaled throughout, or if clear with the fore wings 
triangular in outline. 
F. Hind wings with three anal veins. Care must be taken 
not to mistake a mere fold in the wing for a vein. When 
there is no thickening of the membrane of the wing along 
a fold it is not counted as a vein. 
G. Subcosta and radius of the hind wings grown together 
for a greater or less distance between the ape:: of the 
discal cell and the apex of the wing, or in some caccs 
separate but very closely parallel, p. 228..Pyralidina. 
GG. Subcosta and radius of the hind wings widely sep¬ 
arate beyond the apex of the discal cell. 
* In some moths the antenna; are enlarged towards the tip, forming a 
more or less distinct club ; but this club is quite different in shape from the 
knob at the extremity of the antennae in the skippers and the butterflies. In 
the moths with club-like antennae the ocelli are usually present, and the hind 
wings bear a frenulum. 
