occurrence and phylogenetic implications of the ovipositor clip within the Figitidae (Insecta: Hymenoptera: Cynipoidea)

The presence of the ovipositor clip is surveyed throughout Figitidae. This morphological structure is postulated to restrain the parasitoid host during oviposition. All Figitinae and Eucoilinae that attack semi-concealed dipterous hosts were found to possess the clip. Figitids that attack fully conc...

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Bibliographic Details
Published in:Journal of natural history 2007-01, Vol.41 (33-36), p.2267-2282
Main Author: Buffington, Matthew L
Format: Article
Language:English
Subjects:
Colonization
Cynipoidea
evolution
Figitidae
host-parasite relationships
insect morphology
Koinobiont
morphology
oviposition
ovipositor
parasitoid
parasitoids
phylogeny
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Summary:The presence of the ovipositor clip is surveyed throughout Figitidae. This morphological structure is postulated to restrain the parasitoid host during oviposition. All Figitinae and Eucoilinae that attack semi-concealed dipterous hosts were found to possess the clip. Figitids that attack fully concealed hosts all lacked the ovipositor clip. It is hypothesized here that two subfamilies, the Anacharitinae and Aspicerinae, attack fully exposed hosts yet lack the clip in order to quickly oviposit and prevent fighting with the host. Mapping of the presence/absence of the ovipositor clip on to two competing phylogenies suggests this structure evolved in parallel in Figitinae and Eucoilinae. The evolution of the ovipositor clip is probably responsible for the successful colonization of semi-concealed dipterous larvae by Eucoilinae.
ISSN:0022-2933
1464-5262
DOI:10.1080/00222930701579732