ARBELA TETRAONIS. 439 
centre of the segment. The last segmentis blunt at the end 
and furnished with small knobs and spines, Length 1 inch; 
breadth 8th inch. Fig. 6 shows two views of the pupa, fig, ¢ 
an empty pupal case. 
Moth.— 3. Forewings greyish, thickly irrorated with dull 
brown spots which tend to form transverse bands; three large 
velvety brown patches, one centrally, placed a little below 
costa,a second near the base of wing, and the third (the 
largest) alittle beyond it. Hind wings grey, irrorated with 
a few ashy-coloured patches, Head and _ thorax covered with 
long silky-brown hairs. Body greyish, Expanse of wings= 
tdinch. @ about twice the size ofthe g. Fig.d shows the g 
moth, 
Life-Fistory. 
The appearance of the moth on the wing is evidently 
variable. In the Godavari district moths have been reported 
as issuing during March, whereas in Ganjam a_ specimen 
was bred out by Mr. C. E. C. Fischer in 1903 as late as the 
3rd July. In 1904 Mr. Fischer obtained moths between the 
7th and 25th June. In Cuddalore, on the other hand, nearly 
mature pupz were taken on the ist June. from these data it 
appears that the moth is to be found on the wing between March 
and the beginning of July. I could find none at Chatrapur 
towards the middle of this latter month (in 1903) though numbers 
of the year’s empty pupal cases were visible upon the trees, It 
is probable that the ¢ moths pair and lay eggs very soon after 
issuing, since the members of this family have no mouth and take 
no food in this stage of their existence. The eggs have not 
yet been found, but they are laid upon the bark of the boles 
and branches from a height of 2-3 feet upwards. In Chatrapur, 
which receives the South-West monsoon, the larve hatch out at 
the end of August and during September, but further south 
down the coast, where the rain comes in October or November, 
they may hatch out earlier. The present recorded months 
in which caterpillars have been obtained are from September 
to May in Chatrapur (with pupa in May-June and moths 
in June-July) ; December in North Arcot (with pupa in June) ; 
the same month in Godavari (with pupa and moth in March) ; 
