LIFE-HISTORIES OF INDIAN INSECT. 
MICROLEPIDOPTERA. 
VI. GRACILLARIADA, 
BY 
T. BAINBRIGGE FLETCHER, R.N., F.LS., FES, F.Z58., 
Imperial Entomologist. 
(Received for publication on 27th June 1919.) 
LITHOCOLLETIS TRIARCHA, MEYR. (PLATE XXXIIL.) 
Lithocolletis triarcha, Meyr., B. J., XVIII, 811 (1908)(1) ; Lefroy, Ind. Ins. 
Life, p. 537 (1909)(2)s Murine Get Sece Eat. utis, plore (197) , 
Described from Pusa, where it was reared from larvee mining leaves of 
cotton(!). Lefroy(?) gives the foodplant as tree-cotton, but most varieties 
of cotton may be attacked. 
Larva flattened, but all * legs present; mines lower surface of leaf ; 
pupation in mine(2). 
This species is common at Pusa on cotton, especially on American varle- 
ties, and is probably widely distributed in the Plains, although not yet noted 
elsewhere. The larva mines the lower surface of the leaf which turns yellowish 
white with brown spots. The larva is about 4 mm. long, segments distinct, 
tapering posteriorly ; head small, pointed anteriorly, greenish or yellow ; 
prothorax broad with two brownish spots separated by a greenish band ; 
other segments yellow with a pinkish or greenish tinge, skin rather transparent 
especially on sixth to eighth abdominal segments ; anal shield green, shiny ; 
primary hairs short ; legs short; yellow or green; prolegs on third to fifth 
C x ss . . ry 
* This statement is incorrect and based on an erroneous statement in Ac Mujtaba’s 
Cagesslip 9. 
Rec. Wl BAT met pele lo | 
/ [ fay: 19 Evy 
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