144 GEOMETRIDA. 
a, Fore wing with apex produced; hind 
wing with the outer margin produced 
at vein 4 
6®. Fore wing with the apex, hind wing 
with the outer margin rounded 
b?, Fore wing with vein 11 given off from 12 . 
b'. Palpi porrect. 
a’, Wings broad, the outer margin of fore 
wing suberect. 
a’, Fore wing with veins 7, 8, 9, 10 stalked, 
11 free; the apex rounded; 3 with 
fovea; the cilia non-crenulate 
6°. Fore wing with veins 10 and 11 from the 
cell or stalked; the cilia crenulate. 
a‘, Fore wing with the costa not arched 
at base; the apex quadrate; ¢$ with no 
fovea 
64. Fore wing with the costa arched at base ; 
the apex rounded ; ¢ with fovea 
c?, Fore wing with vein 10 free; 11 from 12; 
the apex rounded; the cilia non-crenu- 
late 
6°. Wings narrower; fore wing with the apex 
more produced and the outer margin 
oblique. 
a°>, Hind wing with the cell extending to two- 
2° 0@ eee © © © &@ & © eo © © © ww ee ew we ew ew 8 8 ow 8 
thirds length of wing; palpi short .... 62. 
6°. Hind wing with the cell normal, about 
half the length of wing; palpi longer. 
a’, Hind wing with the outer margin 
rounded. 
a’. Fore wing with vein 11 not given off 
from 12. 
a®, Wings with the outer margin crenu- 
late 
6°. Wings with the outer margin non- 
crenulate ; vein 11] free ; ¢ with fovea. 
6°. Fore wing with vein 11 given off from 
12 
6*, Hind wing with the outer margin 
irregular, and more or less produced or 
angled at veins 4 and 7 
eoe®e eee ee © 6 © © ee © ee wo ew eee ee 
a 
: Genus URAPTERYX. 
Urapteryx, Leach, Zool. Misc. i, p. 79 (1814). 
Type, U. sambucaria, Linn., from Europe. 
Range. Palearctic and Oriental regions. 
60. 
63. 
61. 
64. 
68. 
70. 
[p. 241, 
AMBLYCHIA, 
ELpHos, p. 249. 
CuoRODNA, 
[p. 243. 
XANDRAMES, 
[p. 250. . 
. GNOPHUS, p. 251. 
. BYLAZORA, p. 2538. 
. OPHTHALMODES, 
[p. 255. 
Biston, p. 245. 
Boarmia, p. 256. 
[p. 290. 
ARICHANNA, 
[p. 283. 
MEDASINA, 
[p. 295. 
EREBOMORPHA, 
Antenne simple and somewhat thickened and flattened; palpi 
short and porrect, meeting a slight frontal tuft. Fore wing arched 
towards apex, which is somewhat produced and acute ; vein 3 from 
angle of cell; 7, 8,9 stalked from upper angle; 10 absent; 11 
anastomosing with 12. 
cell. 
Hind wing with vein 3 from angle of 
