Biology of the Anthocorid Bug, Cardiastethus exiguus on UV Irradiated Eggs of Corcyra cephalonica

VIDYA MULIMAN; BALAJI B N

doi:https://doi.org/10.29321/MAJ.10.001095

Research Article | Open Access | Peer Review

Biology of the Anthocorid Bug, Cardiastethus exiguus on UV Irradiated Eggs of Corcyra cephalonica

VIDYA MULIMAN , BALAJI B N

Volume : 111

Issue: December(10-12)

Pages: 100 - 103

DOI: https://doi.org/10.29321/MAJ.10.001095

Downloads: 0

Published: September 15, 2025

Download

Abstract

Cardiastethus exiguus Poppius is a beneficial predatory anthocorid bug. The biology of C. exiguus was studied on eggs of the alternate host, Corcyra cephalonica (Stainton) in the laboratory, at 28 ± 20C and relative humidity of 70%. The results revealed that C. exiguous had three life stages: egg, nymph and adult. Eggs of C. exiguus were thrust within the plant tissue and hatched after a mean incubation period of 3.5 days. Nymphs, when reared on UV sterilized eggs of C. cephalonica, developed normally with five instars, each having a mean duration of 3.50, 3.00, 2.50, 4.50 and 6.00 days, respectively. The adults were reared on UV-irradiated eggs of C. cephalonica. The mean longevity of the adults was found to be 46.5 days.

DOI

https://doi.org/10.29321/MAJ.10.001095

Pages

100 - 103

Creative Commons

Copyright

© The Author(s), 2025. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.