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Biology, immature and adult morphology, and molecular characterization of a new species of the genus Entedon (Hymenoptera: Eulophidae) associated with the invasive pest Specularius impressithorax (Coleoptera: Chrysomelidae, Bruchinae) on Erythrina plants

Published online by Cambridge University Press:  12 July 2011

A.V. Gumovsky  and
M.M. Ramadan
A.V. Gumovsky*
Affiliation:
Schmalhausen Institute of Zoology, 15 Bogdan Khmelnitsky Street, 01601 Kiev-30, Ukraine
M.M. Ramadan
Affiliation:
Hawaii Department of Agriculture, 1428 South King Street, Honolulu, HI 96814, USA
*
*Author for correspondence Fax: 380-44-234-15-69 E-mail: [email protected]
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Abstract

Entedon erythrinae sp. n. (Hymenoptera: Eulophidae), a gregarious egg-larval endoparasitoid of the Erythrina bruchine Specularius impressithorax, an invasive pest of the coral tree seeds (Erythrina spp.), is described from the Hawaiian Islands and Africa (South Africa, Tanzania and Mozambique). The biology and morphology of preimaginal stages of this new species are described in details.

It is remarkable that the early embryo of the parasitoid represents a mass of undifferentiated cells surrounded by a peculiar membrane formed by the peripheral enlarged polygonal cells. The young larva developing inside this membrane corresponds morphologically to the second instar of congeneric species. Various peculiarities of the parasitoid-host relationships in gregarious and solitary Entedon parasitoids are discussed. The DNA sequences of 28S D2 (nuclear), Cytochrome Oxidase I (COI, mitochondrial) and Cytochrome B (CytB, mitochondrial) genes are provided for this new species and compared with the sequences of some other Afrotropical and Palearctic species of the genus.

Keywords

Chalcidoidea parasitoidsEntedonSpecularius impressithoraxwili wiliErythrina sandwicensisAfrica and Hawaiian Islandsembryoniclarval development
Type
Research Paper
Information
Bulletin of Entomological Research , Volume 101 , Issue 6 , December 2011 , pp. 715 - 739
Copyright
Copyright © Cambridge University Press 2011

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