Pabt I.] Stebbing : Insect Pests of the Himalayan Oaks. 
23 
tliorax and elytra brownish yellow, apical posterior of the latter red 
brown ; legs and antennae pale yellow. Thorax oblong, strongly einargi- 
nate at sides before the middle, base finely and closel}' punctured and with 
a slight median line. El^dra punctate striate, the second striae from 
suture and the outer marginal one broader and more strongly punctured, 
the first and second interstices from the sutiue strongly raised, the fourth 
slightly convex ; the apex coarsely punctured, sublj uncate and unarmed 
in the male, in the female with five acute apical spines. Under surface 
light orange yellow between the second and third pairs of legs, brown 
anteriorly to this, and dark brown to black on abdominal segments which 
are very short. Abdomen densely pubescent at apex in male, in the 
female concave, rugulose. Long 3| to -f millim. (PI. VI, figs. 5, 5a.) 
Life History. 
The only specimens of this insect taken appear to have been sent to 
the Indian Museum, Calcutta, from Deoban, Jaunsar, in 1891. The 
insects were reported as tunnelling into Ban oak stumps, but nothing 
further appears to be known about them. 
DIAPUS sp. prox. IMPRESSUS. 
Reference. — Steb. Departmental Notes, I, 415. 
Nature of Attack. 
Similar to that of B. impressus. 
Previous Record of Insect. 
Specimens of this beetle were first taken by the writer in June 1902 
in Jaunsar, N.-W. Himalaya. 
Distribution. ^ 
Probably throughout the Quercus incana forests of the N.-W. 
Himalaya. 
Description. 
The beetle resembles Biapus impressus but is much larger being 5 — 
5-4 millim. in length. The colour is darker red, the thorax being entirely 
of this colour, as are the legs with the exception of the tarsi which are 
