SINOXYLON ANALE, 
LESNE. 
Reference.—Lesne. Ann. Soc. Ent. Belg. Tom. xli, p. 21 (1897). 
Stebbing Injur. Ins. Ind. For. p. 42. 
Classification.—Order, COLEOPTERA, Family, Bostrichide. 
. Description. 
The /arva is a little white curved grub with the anterior 
segments enlarged and a median dark coloured line running 
down the back; three pairs of legs are present (PI. I, fig. 2, a). 
The grub is active in its movements, wriggling about when dis- 
turbed. Length when full grown 4§ to 5 millim. 
The pupa has the ordinary white beetle-like form which 
gradually assumes the shape of the mature insect (PI. I, fig. 2,b). 
The dee¢/e resembles S. crassum in appearance but is smaller 
and of slighter build. It is at first light yellow in colour, becom- — 
ing darker coloured as its outer parts harden. When mature it is 
oblong, slightly dilated behind, black, with the elytra anteriorly 
rufus-chestnut, more or less dusky, with antenne, palpi and 
feet testaceous, the thighs being paler in colour and the abdomen 
reddish at the apex. The head has a toothed forehead. Anten- 
nz end in a strongly fan-shaped club, the second joint of the 
club being about six times as broad as long. The elytra are 
strongly punctate posteriorly. Length 4 to 54 millim. See 
Pla Sig gta, 
Life History. 
The beetles appear early in April at Changa Manga, appar- 
ently at the same time as S. crassum. In Chota Nagpur they 
are to be foundin March. They remain active, however, later in 
the year (as far as present observation goes) than the latter, as 
I have found them issuing from wood as late as the third week in 
November. The beetles attack trees and felled timber ina 
similar manner to S, crassum, and often these two pests are to - 
be found at work together. The beetle bores its way into the sap 
wood and then eats out alargish chamber and from this two or 
