cover image: Memoirs of the Department of Agriculture in India  Life Histories of Indian Insects  Microlepidoptera  November 1920

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Memoirs of the Department of Agriculture in India Life Histories of Indian Insects Microlepidoptera November 1920

1920

" In its final instar the larva shows a decided preference for the buds and seeds of the Drosera eating a hole in the side of the seed capsule and orevouring the contents but it also eats the leaves. [...] The larva is of a yellowish-green colour en hatching becoming green as ii grows older and remaining of that colour ; on the pods of pigeon-pea which are coloured usually in green with brown stripes the larva also has a lateral brown stiipe and assimilates very closely to the colour of the pod ; on green leaves of pumpkin etc. [...] it is green and this assimilates it to the pule green of the leaf The larva alters little in appearance during the various instars ; in the last instar the dorsal three black tubercles are developed into more prominent protuberances ; the first and third are yellow the second black each withT. [...] The skin splits in front and slips backwards along the body ; on the underside of the eighth abdominal segment is a distinct bunch of curved hooks (cremastral pad) which engages in the silk as the larva wriggles ; the hind end is then freed from the larval skin and the bunch of stiff recurved hairs on the eighth segment acting as a fixed point the anal end by wriggling fixes the terminal bunch [...] In the cold weather as in the hot weather and rains the larvae are found on the different foodplants ; these include the pigeon-pea (Cajanus indices) kulthi (Dolichos lablab) the kaddu or bottle-gourd (Lagenaria vulgaris) ; the plant known as calabash is also stated to be the foodplant in West Africa.
technology medicine science
Pages
311
Published in
United Kingdom
SARF Document ID
sarf.143501
Segment Pages Author Actions
Preface
i-iv T. Fletcher view
I. Pterophoridæ
1-31 unknown view
II. Carposinidæ Phaloniadæ Tortricidæ and Eucosmidæ
32-68 unknown view
III. Elechiadæ
i-95 unknown view
IV. Cosmopterygidæ. Cecophoridæ. Physoptilidæ. Xyloryctidæ. Stenomidæand Orneodidæ.
96-116 unknown view
V. Heliozelidæ. Heliodinidæ. Glyphipterygidæ. Blatobasidæ and Hyponomeutidæ.
i-135 unknown view
VI. Gracillariadæ
136-167 unknown view
VII. Eperiieniadæ Plutellidæ and Lyonetiadæ
168-viii unknown view
VIII. Tineidæ and Nepticulidæ
i-196 unknown view
IX. Appendix
i-217 unknown view
Publications of the Imperial Department of Agriculture in India
i-iv unknown view

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