418 
DIAPUS TALURAZ, n. sp. 
Plate XXIV, figs. 4, 4a, 46. 
Classification:— Order, COLEOPTERA. Family, Scolytide, Sub- 
Family Platypinl. | 
Tree attacked :—Shorea Talura. 
Description, 
Egg.—Very small, in shape like a hen’s egg, translucent and 
colourless, shining. Length *4 millim. . 
Larva.—Not full grown, White, legless, elongate and not 
curved. Length jth inch in largest specimens obtained. Fairly 
active. 
Beetle,—Elongate, narrow, shining. Head and thorax dark 
chestnut-brown, almost black; basal margin, sides and apical 
portion of elytra chestnut-brown, rest pale yellow. Antennz 
yellowish-brown, legs pale yellow. Head vertical, broader than 
thorax, shining and glabrous; eye vertical, pale silvery yellow. 
Antennz set with long curved yellow hairs on scape and funicu- 
lus, scape subcylindrica], longer than funiculus. Thorax oblong 
with shallow depressions on anterior half, emarginate at sides 
before middle, basal margin bi-sinuous, finely pitted with a 
median line. Scutellum is large, triangular and separates the 
elytra at the base. Elytra smooth, finely punctate-striate, their 
apices produced into points in the female, concave in male. 
Last abdominal segment pubescent. The thighs of the middle 
pair of legs fit into sockets on the mesostermum. Length $th 
inch. Figs. 4, 4a, 45, show the larva and male and female 
beetles. 
Life-History. 
This beetle is to be found on the wing at the beginning of 
August in Southern India and lays its eggs in wood at 
this period. On the 6th August beetles’ eggs and newly 
hatched larvae were discovered in the wood of Shorea 
talura. The beetles bore circular tunnels right down into the 
heart-wood of the Shorea. From the lower part of these tunnels 
small off-shoot galleries at right angles to the main one are cut 
out and the eggs laidin these. The main tunnel appears tc 
