263 
CRYPHALUS TECTONA, MS. 
THE TEAK CRYPHALUS. 
Plate XVI, fig. 5. 
Reference :—Provisionally determined as Cryphalus tectona, MS. new to the 
British Museum. 
Classification :—Order, COLEOPTERA, Family, Scolytide, Sub- 
Family, Tomicini. 
Tree attacked :—Tectona grandis, L. (Teak.) 
Description. 
Larva.—The grub of this beetle is very small, white, curved, 
and has no legs, 
Beetle.—Smaller than Cryphalus boswelliz, MS. Cylin- 
drical. Head, prothorax, and elytra a reddish brown in colour 
and covered with rather scattered short yellow hairs which 
are setin rows onthe elytra. The prothorax set with tubercular 
projections anteriorly and lightly pitted posteriorly. Elytra 
fairly finely striated and fitted with parallel rows of short yellow 
hairs running down them. Antennz and legs bright yellowish 
brown, Under-surface set with longish tufts of white hairs 
placed irregularly. Length 1°2 millim. 
Pl. XVI, fig. 5, shows the imago of this beetle. 
Life History. 
This minute beetle was discovered boring into the smaller 
branches of the Teak tree in Berar. The flight time of 
the insect is about the latter half of July in this part of India. 
The beetle would appear to have the same habits as other 
rainute Cryphaii in the continent. It bores into a branch until 
it reaches the cambium layer and then mines out in this and 
the sapwood a small chamber, being then joined by a companion. 
They then together eat out the egg gallery which is simply 
an irregularly-shaped small chamber made in _ the bast 
and sapwocd in which the eggs are laid amongst a small mass 
of woodedust. 
t 
