Results 181 to 190 of about 22,027 (226)
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Ovipositor steering mechanisms in braconid wasps
1995(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Quicke, Donald L. J. +2 more
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Flexible ovipositor sheaths in parasitoid Hymenoptera (Insecta)
Arthropod Structure & Development, 2003The structure of the ovipositor sheaths is examined in a number of parasitic wasps as well as a few non-parasitic taxa. Parasitic wasps in the families Aulacidae, Braconidae, Ichneumonidae, Megalyridae, and Stephanidae with a very elongate, external ovipositor have the lateral wall of the sheath finely transversely subdivided by narrow furrows.
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The gustatory sensilla on the endophytic ovipositor of Odonata
Arthropod Structure & Development, 2013The present paper aims at describing the fine structure of coeloconic sensilla located on the cutting valves of the endophytic ovipositor of two Odonata species, the anisopteran Aeshna cyanea (Aeshnidae) and the zygopteran Ischnura elegans (Coenagrionidae), by carrying out parallel investigations under SEM and TEM.
REBORA, Manuela +3 more
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Superextension and supercontraction in locust ovipositor muscles
Journal of Insect Physiology, 1983Abstract A ten times elongation of certain abdominal intersegmental muscles occurs in female locusts during digging prior to oviposition. During and after oviposition the muscles contract, shortening by up to 90% or more, restoring the resting positions of the abdominal segments.
Jorgensen W.K., Rice M.J.
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Testing hypotheses of adaptive variation in cricket ovipositor lengths
Oecologia, 1993We experimentally tested a series of hypotheses proposed by Masaki (1979, 1986) for the evolution of ovipositor length in crickets. Female crickets use the ovipositor to bury eggs in the soil, where it was hypothesized to protect their eggs from desiccation, cold and other disturbance.
Michael J, Bradford +2 more
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A mechanism for movement of eggs along insect ovipositors
International Journal of Insect Morphology and Embryology, 1981Abstract This paper aims to describe in detail the mechanism by which eggs are moved along the length of the ovipositor of insects. A series of posteriorly orientated scales, located along the inside of the ovipositor valves, catch the surface of the egg as it emerges from the oviduct and move it along the ovipositor as the valves oscillate back and ...
A.D. Austin, T.O. Browning
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Ovipositor internal microsculpture in the Braconidae (Insecta, Hymenoptera)
Zoologica Scripta, 1998Variation in the microsculpture of the ovipositor egg canal, the morphology of the tip of the upper valve, the structure of the valvillus and the apex of the lower valve seals, as revealed by scanning electron microscopy is described for members of 52 genera representing 30 subfamilies of Braconidae.
M. HABIBUR RAHMAN +2 more
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The Morphology of the Ovipositor of Draeculacephala
Annals of the Entomological Society of America, 1933The ovipositor of Draeculacephala mollipes (Say) is carried in a longitudinal receptacle (Pl. I, Fig. 8, a) in the caudoventral part of the abdomen. It consists of two pairs of chitinous valvulae (Pl. I, Figs. 1 and 2), which have come to lie mostly in the same caudocephalic plane. The anterior pair (Pl. I, Fig.
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Sensory receptors of the ovipositor ofTrichogramma maidis [Hym.:Trichogrammatidae]
Entomophaga, 1990Sensory receptors of the ovipositor ofTrichogramma maidis are described. Sense organs are found on the 2nd valvifers (1 type), on the tip of the 3rd valvulae (2 types) and on the 1st valvulae (4 types). The nature and possible functions of these sensilla are discussed.
A. Ralec, E. Wajnberg
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The ovipositor of Parandra brunnea Fab
1913(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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