Ovipositor steering mechanisms in parasitic wasps of the families Gasteruptiidae and Aulacidae (Hymenoptera)

  title={Ovipositor steering mechanisms in parasitic wasps of the families Gasteruptiidae and Aulacidae (Hymenoptera)},
  author={Donald L. J. Quicke and Mike G. Fitton},
  journal={Proceedings of the Royal Society of London. Series B: Biological Sciences},
  pages={103 - 99}
  • D. QuickeM. Fitton
  • Published 22 July 1995
  • Biology
  • Proceedings of the Royal Society of London. Series B: Biological Sciences
Similar but distinct ovipositor steering mechanisms in members of the parasitic wasp families Gasteruptiidae and Aulacidae are described. In both of these there are abrupt stops near the apex of each of the upper and lower ovipositor valves. These stops, which are closely apposed when the ovipositor is at rest, prevent the lower valves from being extended posteriorly relative to the upper valve. Attempts to extend the lower valves posteriorly force the ovipositor to bend dorsally. This ability… 

Figures from this paper

The changing use of the ovipositor in host shifts by ichneumonid ectoparasitoids of spiders (Hymenoptera, Ichneumonidae, Pimplinae)

It is reported that in the ichneumonid group of koinobiont spider-ectoparasitoids (“polysphinctines”), several putatively ancestral taxa, parasitic on ground-dwelling RTA-spiders (a group characterised by retrolateral tibial apophysis on male palpal tibiae), lay their eggs in a specific way.

The ovipositor apparatus of basal Hymenoptera (Insecta): phylogenetic implications and functional morphology

The skeleto‐musculature of the ovipositor apparatus and the external sculpture of the 1st and 2nd valvulae was studied in representatives from all ‘symphytan’ families and the configuration of the musculature did not display much variation among the taxa examined.

The ovipositor actuation mechanism of a parasitic wasp and its functional implications

The findings improve the comprehension of hymenopteran probing mechanisms, the function of the associated muscles, and the forces and damage‐limiting mechanism that are involved in drilling a slender terebra into a substrate.

Morphology and function of the ovipositor mechanism in Ceraphronoidea (Hymenoptera, Apocrita)

Overall, the ceraphronoid ovipositor system is highly variable and can be described by discrete, distinguishable character states, however, these differences do not reflect the present classification of the superfamily and might represent parallelisms driven by host biology.

Structure and Sense Organs of Ovipositors of an Endoparasitoid Aprostocetus causalis and an Ectoparasitoid Quadrastichus mendeli in Leptocybe spp.

The morphology, types, distribution, length, and width of these sensilla and microtrichia were described, and their possible functions are discussed in conjunction with the stinging, oviposition, and the host selection process.

Manganese and zinc in the ovipositors and mandibles of hymenopterous insects

X-ray microanalysis of the ovipositor and mandibles of various hymenopterous insects has revealed the presence in many species of up to 10% wt/wt of either zinc or manganese in the cuticle. These



Biosystematics and Morphology of Symphyta. Ii. Biology of Gall-Making Nematine Sawflies in the California Region

Female sawflies in 3 genera of tenthredinid Hymenopterain the subfamily Nematinae (Phyllocolpa, Pontania, and Euura) incite a gall (procecidium) on Salicaceae during oviposition by injecting modified

Evolutionary Morphology of the External Insect Genitalia. 2. Hymenoptera

The Hymenoptera have the least sexually dimorphic combined with the least specialized genitalia among the Pterygota and the ovipositor has lost its egg-laying function in the latter and becomes the sting.

Evolutionary Morphology of External Insect Genitalia. 1. Origin and Relationships to Other Appendages

The notum formed through fusion of the dorsal (euventral) rami of gonapophyses IX is a landmark in both sexes of nearly all insects.

Ovipositor structure and relationships within the Hymenoptera, with special reference to the Ichneumonoidea

The morphology, function and phylogenetic significance of the hymenopterous ovipositor, as revealed by transverse sections, is explored and functional interpretations are given for several characters, with particular reference to substrate penetration, passage of the egg along the ovipOSitor and stinging.

Biosystematics and Morphology of Symphyta. I. Stem-Galling Euura of the California Region, and a New Female Genitalic Nomenclature

The morphology of the female ovipositor reflects the physical structure and ecology of the host plant and the site galled, as well as the phylogeny of the insect, and can be used to delineate both willow and sawfly taxa.

Ovipositor mechanics of the braconine wasp genus Zaglyptogastra and the ichneumonid genus Pristomerus

The multiply-arched, apical quarter to half of the ovipositors of Zaglyptogastra species are capable of flexing ventrally through up to 180°, an action which juxtaposes swollen lower valve sections with weak concave narrowings of the upper valve.

The Smithsonian Institution

REPORT FOR 1946–47