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Biology of Goniozus sensorius Gordh (Hymenoptera: Bethylidae) a parasitoid of the pumpkin caterpillar, Diaphania indica (Saunders) (Lepidoptera: Pyralidae)*

Published online by Cambridge University Press:  19 September 2011

Clement Peter  and
B. V. David
Clement Peter
Affiliation:
Fredrick Institute of Plant Protection and Toxicology, Padappai 601 301, Tamil Nadu, India
B. V. David
Affiliation:
Fredrick Institute of Plant Protection and Toxicology, Padappai 601 301, Tamil Nadu, India
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Abstract

Studies were conducted on the biology of the recently described Goniozus sensorius Gordh (Hymenoptera: Bethylidae), a gregarious ectoparasitoid of Diaphania indica (Saunders) (Lepidoptera: Pyralidae). Eggs are laid after temporarily paralyzing the host. Mean development time from egg to adult is 11.96 days at 26.43 and 65.08% r.h. The female lays an average of 50.1 eggs during its life time and parasitizes 7.26 hosts on average. The sex ratio is 1:3.91, males:females. Mean adult longevity is almost similar for males (8.55 days) and females (9.81 days). Aphanogmus fijiensis (Ferriere) (Hymenoptera: Ceraphronidae) was recorded as a hyperparasitoid through G. sensorius.

Résumé

Des recherches ont été conduites sur la biologie de Goniozus sensorius Gordh (Hymenoptera: Bethylidae), ectoparasitoïde grégaire récemment décrit de Diaphania indica Saunders (Lepidoptera: Pyralidae). Les oeufs sont pondus après une paralysie temporaire de l'hôte. Le cycle bilogique dure en moyenne 11,96 jours à 26,43° à 65,08% HR. La femelle pond en moyenne 50,1 oeufs dans sa vie et parasite en moyenne 7,26 hôtes. Le sex ratio est de 1:3,91 mâles:femelles. La durée de vie sensiblement comparable dans les deux sexes est égale à 8,56 jours pour les mâles et 9,81 jours pour les femelles. Aphanogmus fijiensis (Ferriere) (Hymenoptera: Ceraphronidae) a été décrit comme étant hyperparasitoïde de G. sensorius.

Keywords

Goniozus sensoriusDiaphania indicabiology
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 12 , Issue 4 , August 1991 , pp. 339 - 345
Copyright
Copyright © ICIPE 1991

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References

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