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Identification of the Diadegma species (Hymenoptera: Ichneumonidae, Campopleginae) attacking the diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae)

Published online by Cambridge University Press:  09 March 2007

A.A. Azidah
Affiliation:
Department of Entomology, The Natural History Museum, London, SW7 5BD, UK: Institute of Biological Sciences (Zoology), University of Malaya, 50603 Kuala Lumpur, Malaysia
M.G. Fitton*
Affiliation:
Department of Entomology, The Natural History Museum, London, SW7 5BD, UK:
D.L.J. Quicke
Affiliation:
Department of Entomology, The Natural History Museum, London, SW7 5BD, UK: Unit of Parasitoid Systematics, CABI Bioscience UK Centre (Ascot), Department of Biology, Imperial College at Silwood Park, Ascot, SL5 7PY, UK:
*
*Fax: 020 7942 5229 E-mail: M.Fitton@nhm.ac.uk

Abstract

The species of Diadegma that attack Plutella xylostella(Linnaeus) are revised. Following a morphometric study involving principal components and discriminant analyses, seven distinct morphospecies are recognized. One species is described as new: D. novaezealandiae from New Zealand. Diadegma mollipla(Holmgren) is the name for the species from sub-Saharan Africa and some Indian Ocean and South Atlantic islands. Diadegma varuna Gupta syn. nov. and D. niponicaKusigemati syn. nov. are both synonymized with D. fenestrale(Holmgren). Diadegma xylostellae Kusigemati is strongly presumed to be a synonym of D. semiclausum (Hellén). An illustrated identification key is provided and each species is described in a standard way.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2000

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