EXPLANATION OF PLATES III—x. 
[The drawings reproduced on Plates VIII—X were made with the 
aid of the Abbe camera lucida. | 
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PEAR RET: 
1.—Photograph of healthy head of jola (Andropogon sorghum, L.). 
2.—Photograph of jola head damaged by the Jola Grasshopper. 
Only a few grains have been left. 
(Figs. 1 and 2 are both reduced to about the same extent.) 
PLATE IV. 
1.—Bags at work in jola field. Photographed -Honnali, August, 
1910. 
2.—Part of one day’s catch of young hoppers with six bags. The 
heap contains about twenty-seven lakhs of hoppers. Photographed 
Honnali, August, 1910. 
3.—-Nymphs of Jola Grasshopper feeding on young jola. Photo- 
graphed Honnali, August, 1910. 
PLATE, V. 
1.— Part of untreated jola field near Honnali almost completely 
destroyed by the Jola Grasshopper. Photographed December, 1910. 
2.—Part of untreated jola field near Honnali attacked by Jola 
Grasshopper but not so completely devastated as the field shown 
in Fig. 1. Note the extensive growth of weeds, owing to weeding 
operations being neglected. Photographed December, 1910. 
PUAT EL 
1.—Part of field near Honnali which was deep-ploughed and 
bagged twice. No weeding was done, so this should be compared 
with Plate V, Fig. 2. The thinness of the crop is due to wide 
planting. Photographed December, 1910. 
2.—Clump of jola plants in field near Honnali which was deep- 
ploughed and bagged eight times. The crop is almost completely 
saved and the heads are very fine. Photographed December, 1910. 
PLATE VII. 
1.— Female Jola Grasshopper laying eggs in breeding cage. 
2.—Egg-mass of Jola Grasshopper removed from breeding cage. 
The covering matter has been removed from one side to show -the 
natural arrangement of the eggs. 
