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A further note on the life history of 
MONOPHLEBUS STEBBINGI, 
GREEN. ) 
THE SAL TREE WHITE SCALE. 
Plate XIX, fig. 4 a, 5, ¢, d, e, f. 
(See pp. 135—141 in No. 1.) 
Tree attacked :—Shorea robusta (Sal), 
Description. 
Egg.—The eggs are laid by the female ina fine-meshed thin 
cottony sac or bag as shown in Pl. XIX, fig. 4,a@. The eggs are 
dry, shining, and pink in colour and separate, not being joined 
together by any siccable substance. They are oval-elliptical in 
shape and 4th inch in length (fig. 4, d). 
dé .—pupa ?.—I have found some small light-brown empty 
pupal cases which I take to be the pupal cases of the d insect. 
They are 4th inch in length with an elliptical opening at one 
end by which the insect had crawled out. PI. XIX, fig. 4, ¢, 
shows this pupa case and 4, d, a drawing of the mature winged 6 
insect which issues from it, 
Life History. 
Egg-laying.—The ¢ scales were found laying eggs towards 
the end of April and beginning of May. Before the eggs are 
laid, the under-segments of the body are seen to be developing a 
white woolly hair. This increases in amount, especially towards 
the anal extremity, and within this white woolly mass the 
eggs are laid. At first this white cottony material is quite 
short, and, looked at from the dorsal surface of the insect, is 
seen to only project a little way from the tip of the abdomen, 
jt, however, soon increases in amount until the insect appears to 
rie 
ae 
