Ricerca
Risultati della ricerca
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Journal article
The changing use of the ovipositor in host shifts by ichneumonid ectoparasitoids of spiders (Hymenoptera, Ichneumonidae, Pimplinae)
Accurate egg placement into or onto a living host is an essential ability for many parasitoids, and changes in associated phenotypes, such as ovipositor morphology and behaviour, correlate with significant host shifts. Here, we report that in the ichneumonid group of koinobiont spider-ectoparasitoids (“polysphinctines”), several putatively ancestral taxa (clade I...Takasuka, Keizo ; Fritzén, Niclas R ; Tanaka, Yoshihiro ; Matsumoto, Rikio ; Maeto, Kaoru …
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Journal article
A novel host of Itoplectis viduata (Gravenhorst) (Hymenoptera: Ichneumonidae, Pimplinae), with some wider rearing records
The apparently regular use of cocoons of a species of Pompilidae, Homonotus sanguinolentus, by the ichneumonid parasitoid Itoplectis viduata at a site in Russia is reported, and seen in the context of the host range of I. viduata as revealed by reared material in the National Museums of Scotland (NMS).Shaw, Mark R ; Borisova, Natalia
pseudohyperparasitism, niche generalist, host range, Cheiracanthium erraticum, Homonotus sanguinolentus, western Europe, and Russia
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Journal article
A new species and first rearing record of the genus Thibetoides Davis (Hymenoptera: Ichneumonidae, Tryphoninae) from France
The genus Thibetoides, known from the western USA and various parts of the former USSR, Turkey and Eastern Europe, is reported from Western Europe for the first time. A single female of Thibetoides aprosthemae Shaw sp. nov. was reared from a cocoon of the argid sawfly Aprosthema tardum collected in... -
Journal article
Anatomy, reach and classification of the parasitoid complex of a common British moth, Anthophila fabriciana (L.) (Choreutidae)
The small plurivoltine moth Anthophila fabriciana is widespread and often abundant in Britain wherever its main larval foodplant, stinging nettle, occurs. It overwinters as a larva (first generation) then has one or more partly overlapping summer broods (notionally second generation). A total of 5017 larvae were collected and reared from...Shaw, Mark R
Ichneumonoidea, generation differences, Specialisation categories, Eulophidae, and Urtica dioica
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Journal article
Further notes on the biology of Pseudavga flavicoxa Tobias, 1964 (Hymenoptera, Braconidae, Rhysipolinae)
Pseudavga flavicoxa, a solitary koinobiont ectoparasitoid of Bucculatrix thoracella, attacks host larvae early rather than late in their final instar, subsequent development of the parasitoid then occurring within the host cocoon. This paper supplements an earlier contribution outlining other aspects of its biology and taxonomy. The host is stung repeatedly,...Shaw, Mark R
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Journal article
Evolution of the parasitic wasp subfamily Rogadinae(Branconidae): phylogeny and evolution of lepidopteran host ranges and mummy characteristics.
Background: The braconid subfamily Rogadinae is a large, cosmopolitan group of endoparasitoid wasps characterised by 'mummifying' their lepidopteran host larvae, from which the adult subsequently emerges. Rogadines attack a variety of both macro- and microlepidopteran taxa, although the speciose genus Aleiodes almost exclusively attacks macrolepidopterans. Here, we investigate the phylogenetic...Shaw, Mark R