402 NIPONIUS ANDREWESI, LEWIS. 
eee ne ee 
have no further observations on the life-history between April 
and September in the Dun areas. 
In Madras, however, I found the mature beetle in the tunnels. 
of the Anogeissus bark-borer in August. The scolytids were 
burrowing into some freshly cut poles (2 ude page 397) for egg= 
laying purposes, and the Niponius was present feeding upon 
the scolytid beetles. 
In Bombay the beetle has been taken in Kanara, caught at 
light. 
Localities from where reported. 
This insect was first taken by Mr. T.R. D. Bell in Kanara, 
Bombay Fresidency. It was subsequently found by the writer 
in the Dun Sal forests of Northern India and in the Talamalat 
Reserve in the North Coimbatore forests in Madras. 
Relations to the Forest, 
The life-history of this Niponius requires further study. 
It is likely to prove a most beneficial insect in the forest. Its. 
distribution appears to be wide, as the above localities in which 
it has been taken show. It is not improbable that research will 
prove that it feeds upon other scolytid beetles in addition to the 
two species already discovered to form its food. 
Potnts in the life-history requtring further observation, 
1. Where the eggs are laid. Is it in the entrance tunnels 
of the bark-borers or in the egg-galleries ? 
2. The food of the larve. Do they feed upon the scoly- 
tid Jarve? Ithink this is practically certain. 
. The length of time passed in the egg, grub, pupa and. 
beetle stages of this insect. 
4. The number of generations passed through during the 
year. Does this correspond with the number: 
passed through by its hosts? As larve of various. 
sizes are to be found in the galleries they may 
feed upon other insects besides the host, and the 
generations passed through may therefore be more: 
numerous, 
