CEYLON BUTTERFLIES. vail 
diffuse and ill-defined. The sub-apical yellow spots on the 
black area entirely wanting, or, if present, diffuse and 
indistinct” (Bingham). 
My specimens vary greatly in all these respects. In nearly 
all my specimens the spot in interspace | is far larger than those 
in 2 and 3, though not so large as in Bingham’s figure of 
erymanthis. 
Common wherever there is a fair rainfall. It always seems 
abundant at Watering Point, Galle, but is found at all eleva- 
tions, and apparently all the year round. I have never seen 
it north of Vavuniya. 
It settles on bushes usually about 5 to 8 feet from the ground. 
If disturbed, it dives into the thickest growth, and is therefore 
very difficult to capture in first class condition. 
51. CETHOSIA NIETNERI.—Peculiar to Ceylon. 
1 have records of its occurrence at Haldummulla in every 
month but January, but it is most numerous during the 
south-west monsoon. 
It is one of the easiest insects to catch, owing to its slow 
hovering flight ; its wings are not so delicate as they look, 
and are seldom damaged in the net. 
It usually varies little, except in size, but I have one male 
in which the ochraceous patch on both wings is missing. 
Found all over the low-country from Galle to Vavuniya, 
and up to 6,000 feet (Ohiya) at least, but it seems to be most 
plentiful at a fair elevation, say 2,000 to 4,000 feet. 
52. CynTHIA ASELA, M., De N., & B.; Cynthia erota asela, 
E.—Peculiar to Ceylon. 
** g absolutely indistinguishable from the wet season form 
of #. ecrota”? (Bingham). The, female differs in having the 
white discal band very much narrower and only extending to 
vein 6 on the hind wing, whereas in erota it extends to vein 2. 
The series of females in the Colombo Museum vary extremely 
in the width of this white hand. In some it is almost obsolete 
on the hind wing, in others it extends to vein 5. In two of 
my specimens it just extends over vein 6. 
The male is common at Haldummulla from May to August. 
It usually basks high up on trees, taking short flights and 
returning to the same spot. It is also very frequently found 
