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argina cribraria

International Journal of Tropical Insect Science (1)

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Cannibalism in phytophagous Argina cribraria larvae and its possible significance *
T. C. Banerjee, A. K. Mahapatra
Journal:

Insect Science and Its Application / Volume 8 / Issue 2 / April 1987

Published online by Cambridge University Press:

19 September 2011, pp. 211-215

Print publication:

April 1987
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Most fifth instar Argina cribraria female larvae reared in paired groups on fresh sunnhemp leaves practised cannibalism on the male. A potential cannibal pounced on the victim and severed its dorsal vessel, causing profuse bleeding of haemolymph, immobility and contraction. The cannibal fed on victim's carcass and might consume 1–2 larvae and 1–3 pupae. More females emerged from an experiment having larval cannibalism. The cannibals were lighter, but the relative titres of sugars, proteins and phenols were higher in cannibals than those in control female caterpillars.