82 Records of the Indian Museum. [Voy. XVIII, r919.] 
The anal appendages are also of unusual character and ob- 
scurely nodate. They are lanceolate in shape and doubled on 
themselves like a half-opened leaf. The outer border and midrib 
are spined for about two-thirds of the proximal en. und the distal 
portion is deeply pigmented in its outer half, in fact almost black 
in some specimens. The specimens are young so that nothing is 
learnt from the tracheation. 
The larvae of dragonflies usually hibernate during the 
winter, and it is surprising to find that so many were taken in 
an active condition during two of the coldest months of the year. 
[The temperature was as a rule well below freezing-point at night 
at the time they were captured. The water of the streams and 
pools at Quetta in which the larvae were found was, however, dis- 
tinctly warmer than the air, while the channels and pools in the 
Haniun-it-Helmand were protected from wind and frost by the 
reeds. IN: A]. 
a 
