3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
PLUME-MOTHS OF CEYLON. 
Fore wing four-lobed 
Fore wing three-lobed 
Fore wing two-lobed 
Cilia with scale-tufts or specially modified 
scales, or either segment of f.w. banded 
transversely, or second segment of f.w. 
with distinct tornal angle ; any or all of 
these characters may co-exist 
Cilia with no scale-tufts or specially modi¬ 
fied scales, neither segment of f.w. 
banded transversely, second segment of 
f.w. without any tornal angle ; all these 
characters must co-exist 
Third segment of h.w. with no scale-tuft in 
dorsal cilia 
Third segment of h.w. with a scale-tuft in 
dorsal cilia 
Cleft of f.w. less than half wing-length . . 
Cleft of f.w. at least half wing-length 
Dorsal cilia of f.w. with scattered large 
black scales 
Dorsal cilia of f.w. without scattered large 
black scales 
Only one nervure in first segment of f.w. ;* 
abdomen usually very large and stout, 
often strikingly ornamented dorsally ; 
resting position in life with wings spread 
out and closely appressed to the resting- 
surface 
More than one nervure in first segment of 
f.w. ;* abdomen usually rather small, 
slender, and dull-coloured, and, if orna¬ 
mented, the pattern is generally lateral; 
resting position in life with wings folded 
up and held well clear of the resting- 
surface 
Second segment of f.w. linear 
Second segment of f.w. not linear 
Segments of h.w. differently shaped 
Segments of h.w. similarly shaped 
Ground-colour of wings pale ochreous 
Ground-colour of wings not pale ochreous 
F.w. with dark blotch before cleft 
F.w. without dark blotch before cleft 
7 
Heptaloba 
Deuterocopus 
4 
5 
12 
6 
9 
7 
8 
Exelastis 
Stenoptilia 
Diacrotricha 
Trichoptilus (part) 
Trichoptilus (part) 
10 
Platyptilia 
11 
Sphenarches 
Oxyptilus 
Pterophorus 
Alucita 
* Compare figures D and E in Plate C. 
