IIEI’OKT ON ErONOltIC ENTOMOLOGY 
243 
The Ghain 4Yeevil 
iinniaria, Linn. 
This was found attacking stored dura in company with the rice weevil. 
The adult is chestnut-hrown in colour and 4-5 nun. in length. Unlike the rice 
weevil, it has no powers of flight, the elytra being firmly cemented together. 
There are upwards of four broods in the year. 
Pbeventive and kemediaij measures ag.ainst insect i’ests of grain 
ANT) OTHER STORED GOODS 
Care should first be taken that the rooms or cases in which goods, such as clothes, 
grain, tobacco, etc., liable to be attacked by the various pests, are to be stored, are free 
from these pests, and that the windows, doors or other openings are, as far as possible, 
insect proof. No goods should be placed in the store unless they are known to be free 
from store pests. If infested, before being placed in the store they should be fumigated 
with carbon bisulphide. 
Such fumigations should be carried out in the following way. The goods to be 
treated should be placed in an airtight bin, the cubic content of which is known. A 
measured quantity of carbon bisulphide should be poured into a shallow dish, placed on the 
top of the goods, the lid closed down, and the bin left for from twenty-four to thirty-six 
hours. At the end of this time the lid should be opened and the fumes of the carbon 
bisulphide allowed to escape. 
Carbon bisulphide should be used at the rate of 1-li lb. for every 1000 culiic feet 
of air space. 
It must not be forgotten that carbon bisulphide vapour, with air, forms a mixture 
that explodes at a comparatively low temperature (297'5°F.).' A bin used for fumigating 
purposes, therefore, is best kept in an isolated shed, and, when in use, precautions taken 
that no fire is brought near it. 
II. To Timber 
a Os 
N iuo.rylon sene<jaIense 
Plate XXX., figs. 10, 11 
Many wood-boring beetles occur in this country, perhaps the most common being one 
of the augur beetles, Hinoxylou seneyalenso, known to the natives as the “ sils.” 
The adult (fig. 10) is dark brown to black in colour and a typical bostrichid in 
appearance. Each of the elytra bears on its posterior portion a backwardly-projecting 
spine. 
Leuyth, about 7 mm. 
Normally the sus feeds in dead wood, tunnelling in all directions and producing what 
is sometimes known as “ powder post injury ” (fig. 11). It does not appear to attack 
healthy trees. 
The method of tapping a hashab tree for gum is to remove a strip of bark : the gum 
then slowly exudes from the wound thus made.- When, as sometimes happens, a 
branch is seriously weakened by the removal of too large a strip of hark, it becomes liable 
to the attack of the sus. 
‘ t'nitcd Stairs iJrjHirlment of .lyrk-iillure, Farmers’ HuUeUn, No. 14;'). 
- Vule. lleport of Chemical Section. 
Fumigation for 
store pests 
An insect 
destroying 
\vood 
