Neotropical Entomology

, Volume 48, Issue 4, pp 668–677 | Cite as

Morphology, Biology and Predation Capacity of Amphiareus constrictus (Stål) (Hemiptera: Anthocoridae)

  • C R Ballal
  • R VarshneyEmail author
  • S Joshi
Biological Control


A minute pirate bug, Amphiareus constrictus (Stål) (Hemiptera: Anthocoridae), the biology of which has been less studied, was successfully reared in the laboratory for more than 20 generations. Studies were conducted to understand its biology, life table parameters, and predatory potential. Besides the adult, the egg and all five nymphal instars are described with live images, which can serve as additional characters for identification. The biological parameters were studied at different temperatures. Rearing temperatures of 25 and 30°C were found to be suitable for hatching and nymphal survival to adult stage (88.5 and 75%, respectively). Life table parameters like net reproductive rate (R0), precise intrinsic rate of increase (rm), finite rate of increase (λ) and hypothetical F2 females were higher at 25°C. A nymph could consume a total of 32.8 ± 1.8 Corcyra cephalonica Stainton eggs. Male and female adult consumed a total of 179.0 ± 15.6 and 388.5 ± 58.6 C. cephalonica eggs, respectively. The data generated through studies on biology, fertility, and predatory potential led to the standardization of a simple production protocol for A. constrictus utilizing the eggs of the rice moth C. cephalonica. Predatory potential studies on Tuta absoluta (Meyrick) indicated that a nymph could consume 154.8 eggs during nymphal duration. Male and female adults could consume 1280.5 and 1435 eggs, respectively. The mass-reared A. constrictus can be field evaluated against the tomato pinworm TT absoluta and the brown plant hopper Nilaparvata lugens Stål.


Anthocoridae Amphiareus constrictus Biology Diagnostic characters Predatory potential Rearing 



The authors are grateful to Dr. V. V. Ramamurthy, National Co-ordinator, Network Project on Insect Bio-systematics, Division of Entomology, IARI, New Delhi, India, for the EM facilities provided and to Dr. K. Yamada, Tokushima Prefectural Museum, Tokushima, Japan, for taxonomic identification of Amphiareus constrictus. The authors are also thankful to Mr. Jogesha for technical assistance and Mr. Raja for continuous maintenance of the Amphiareus constrictus culture.

Author Contribution

CRB and SJ conceived the study. CRB, RV, and SJ performed experiments and analyzed the data. CRB and RV wrote the manuscript. All authors read and approved the manuscript.


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Copyright information

© Sociedade Entomológica do Brasil 2019

Authors and Affiliations

  1. 1.ICAR-National Bureau of Agricultural Insect ResourcesBangaloreIndia

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