PROCEEDINGS OF THE SECOND ENTOMOLOGICAL MEETING 89 
Nezara viridula is common on castor as on so many other plants Mr. Fletcher. 
and is often a minor pest. The bugs may be collected by hand or in 
hand-nets. 
Mites are found throughout our limits on castor and are sometimes 
serious pests. Spraying with Crude Oil Emulsion mixed with Flowers 
of Sulphur will usually check them successfully. 
LinsEeD (Linum usitatissimum). 
Linseed does not seem to have any very serious regular pests but mr, Fletcher. 
is attacked by a good many insects, all of which seem to be caterpillars. 
‘On the leaves we get :— 
Diacrisia obliqua. 
Plusia orichaleea. 
Prodenia litura. 
Laphygma exigua. 
Grammodes stolida. 
Euproctis scintillans. 
Most of these are polyphagous species which,we have already dealt 
with under other crops, so we need not consider them again in any 
great detail. 
Diacrisia obliqua occurs occasionally in some numbers on linseed 
in Bihar and Bengal, and hand-picking of eggmasses and young larve 
is effective as a check. 
Plusia orichalcea has been found on linseed at Pusa. 
At Cawnpur Farm Plusia orichalcea occurred on linseed the year Mr. David. 
before last. 
Prodenia litura has been noted on linseed at Kot Chandpur, in the Mr. Fletcher. 
Jessore District, but is not a regular pest of this crop. 
Laphygma exigua has been recorded on linseed in the Central Pro- 
vinces. 
Linseed was attacked by Laphygma eaigua at Nagpur. Mr. Khare. 
At Mandalay Farm also linseed was attacked by Laphyyma exigua. Mr. Shroff. 
Laphygma occurs throughout India and Burma and may occur, Mr. Fletcher. 
anywhere that linseed is grown, as a pest of this crop. 
Grammodes stolida [‘‘ South Indian Insects,” pp. 387-388, fig. 251] 
is the nearest approach that we seem to have to a specific pest of linseed. 
It is an occasional minor pest in Madras but does not seem to have 
been noticed elsewhere although this insect is widely distributed through- 
out India and Burma. 
