144 Records of the Indian Museum. [Nor. Sen: 
absence of hairs behind the antennae and by the somewhat shorter 
pile on the body. There are no lateral hairs. The tenth abdomi- 
nal segment bears the usual circumanal ring. 
Leptaulax dentatus (Fabricius). 
Localities. —Abor Country: Rotung, 1300 ft. 
Tenasserim: Kawkareik, Amherst District. 
Four specimens, 18-25 mm. long. The head is practically 
hairless above, and is entirely without long hairs. The body is 
practically without pile and has only a single pair of dorsal hairs 
on the first eight (? sometimes six or seven only) abdominal seg- 
ments. 
Leptaulax bicolor (Fabricius). 
The two somewhat imperfectly separated varieties into which, 
at most, the adults of this species seem at present to be divisible, 
are associated in the single collection of each before me with 
slightly different larvae. Although it is impossible to be certain, 
from these two collections only, that this implies that the separa- 
tion referred to has been on right lines, it will be convenient to 
accept this hypothesis in describing them. 
I. IL. BICOLOR (Fabricius) s. str. 
Locality.—Cochin State: Kavalai, ca. 2000-2500 ft. 
Several specimens varying from 12-3r mm. in length. The 
adults with which they are associated are about 29 mm. in length. 
The whole larva is practically without pile. Inthe smallest speci- 
mens there is a single long hair in a row of small ones behind the 
antennae ; but this disappears later, apparently when the larva is 
about 15 mm. long. In the smallest larvae the thorax bears three 
long hairs in the anterior angles of the first segment, a cluster of 
much shorter ones above the base of each of the first two pairs of 
legs, and a single pair of ventral hairs behind the third pair of legs. 
In a specimen a little over 15 mm. the hairs above the legs are 
quite weak, and a single pair of rather small dorsal hairs has 
appeared on each thoracic segment. In larger larvae the hairs 
above the legs completely disappear. Each of the first nine seg- 
ments of the abdomen bears two pairs of well developed dorsal 
hairs, and one pair of much smaller dorsally directed ventral 
hairs ; on the ninth segment there is in addition a pair of ventrally 
directed ventral hairs resembling those which are dorsally directed 
and situated slightly below them; the ventral hairs on the eighth 
_and ninth segments are duplicated in one very small specimen ; 
the ventral hairs are easily seen in very small specimens but are 
quite small in large ones. The tenth abdominal segment bears 
the usual circumanal ring of hairs. 
