250 CUCU$US (2) SP, 
—_—_ on 
covered by the thorax. Antenne moniliform, placed in front 
of eyes, yellow in colour, as also are the legs, Thorax black, 
rounded in front, squarish behind, very convex and uniformly 
punctured all over. Elytra rufous brown and punctured, rounded 
at their tips and leave one black segment of the body exposed, 
Under-surface black, shining, pitted; 5 visible ventral seg- 
ments of the abdomen. Tarsi 5-jointed. Length 3°35 millim. 
Pl. XIII, fig. 7, shows this beetle. 
Lijeiistory. 
This beetle is usually to be found in company with Nipontus 
canalicollis in the galleries of the above described bark beetles 
attacking the blue pine and spruce. Mature beetles were first 
discovered towards the beginning of May and again towards the 
end of June. Later on perfect insects of this species were again 
found in the tunnels of the two species of Polygraphus beetles 
about the 3rd week in September, whilst in December (on the 
15th of the month) numbers of them were taken from trees 
together with the Zomicus, Polygraphus, and Nipontus canali- 
collis beetles and sent to me.! 
It would appear that this beetle passes the winter in the 
imago stage, or that, at any rate, a portion of the last genera- 
tion of the year does so.* 
Relations to the Forest. 
This insect is as useful in the forest as its companion JV. 
canalicollis. It more especially, if not entirely,? confines itself 
to preying upon the two species of Polygraphus, which attack 
and infest the blue pine and spruce. 
Iam unable to say at present whether it attacks any of 
the stages of the Tomicus or Pityogenes insects, but I have 

1 These and previous consignments from September onwards were, at 
my request, very kindly obtained and sent to me by Mr. J. C. Tulloch 
Deputy Conservator of Forests in charge of the Jaunsar Division. 
4 Subsequent observations made since this note went to press have 
shown me that this beetle is exceedingly plentiful in the Jaunsar coniferous 
forests. In the galleries of the blue pine Tomicus, the Polygraphus and 
Pityogenes beetles and even inthe galleries of the Scolytus major and 
S. minor beetles in Deodar this beetle swarmed between May and July 
1902 and through the later montns also. It was always to be found in 
the imago form, Its larval stage has not yet been discovered. 
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