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    Baishya, Bhavna Prishnee Bardoloi, Sunayan and Bharali, Rupjyoti 2015. Investigation into the Effect of Altitude on the Differential Hemocyte Count of Circulating Plasmatocytes and Granulocytes of Larval Stage ofAntheraea assama(Lepidoptera: Saturniidae). Journal of Insect Science, Vol. 15, Issue. 1, p. 64.

    Govindaraju, K. Tamilselvan, S. Kiruthiga, V. and Singaravelu, G. 2011. Silvernanotherapy on the viral borne disease of silkworm Bombyx mori L.. Journal of Nanoparticle Research, Vol. 13, Issue. 12, p. 6377.

    Gujar, Govind T. and Kalia, Vinay K. 2005. Hemocyte diversity of the American bollwormHelicoverpa armigera. Phytoparasitica, Vol. 33, Issue. 1, p. 17.

    SILVA, J. E. B. BOLELI, I. C. and SIMÕES, Z. L. P. 2002. Hemocyte types and total and differential counts in unparasitized and parasitized Anastrepha obliqua (Diptera, Tephritidae) larvae. Brazilian Journal of Biology, Vol. 62, Issue. 4a, p. 689.

    Sanjayan, K. P. Ravikumar, T. and Albert, S. 1996. Changes in the haemocyte profile ofSpilostethus hospes (Fab) (Heteroptera: Lygaeidae) in relation to eclosion, sex and mating. Journal of Biosciences, Vol. 21, Issue. 6, p. 781.

    Beeman, Sylvia C. Wilson, Marijo E. Bulla, Lee A. and Consigli, Richard A. 1983. Structural characterization of the hemocytes ofPlodia interpunctella. Journal of Morphology, Vol. 175, Issue. 1, p. 1.

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  • Print publication year: 1979
  • Online publication date: August 2010

8 - Controversies about hemocyte types in insects

Summary

Introduction

It seems strange that after almost a century of research in insect hemocytology, there is still no consensus on one of its most basic questions: Do the different forms of cells we find in the blood represent transient morphological variants of one kind of cell or constitute a number of distinctive and immutable types? If our indecision on this point seems strange, perhaps it can be forgiven if we consider that the answer requires at least some knowledge of the origins and biology of the hemocytes in a wide range of insect species. Such knowledge cannot yet be claimed, for in only a few species among about 100 genera have even superficial studies been made, and in only about 20 others has the research continued in any depth. Surprisingly, almost the entire body of research on insect hemocytes is concentrated among only 6 orders (Coleoptera, Dictyoptera, Diptera, Hemiptera, Lepidoptera, and Orthoptera) of the 25 or more in the class, and there are widely varied opinions on the status of hemocyte types in any one of them. Little wonder, then, that the subject is a contentious one.

Although this question cannot be answered to everyone's satisfaction even now, it can be examined fairly in the light of recent observations and with an attempt to eliminate ambiguities and misinterpretations that are perpetuated in the literature. This will be the approach taken here.

The status of the hemocyte types is inseparable from hemocyte classification and is bound to studies of the nature of the cells. Unfortunately, hemocyte classification is constantly in disrepute.

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Insect Hemocytes
  • Online ISBN: 9780511759987
  • Book DOI: https://doi.org/10.1017/CBO9780511759987
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