Results 181 to 190 of about 17,709 (219)
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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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The Functional Morphology and Interpretation of the Insect Ovipositor
The Canadian Entomologist, 1961Elsewhere (Scudder, 1957a), I have outlined briefly a revised interpretation of some basal structures in the insect ovipositor. It was shown that in insects other than the Machilidae, the female genitalia has a common plan, this plan differing from that usually taken as the basic type. Whilst Snodgrass (1933) based his interpretations of all the higher
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Structure of ovipositors and cladoendesis of Saltatoria, or Orchesopia
Entomological Review, 2016The oldest circumscriptional names of the taxon under consideration are Orchesopia Rafinesque, 1815 and Saltatoria Latreille, 1817. The recent Saltatoria are divided into two subordinate taxa whose circumscriptional names are Dolichocera Bey-Bienko, 1964 and Caelifera Ander, 1936 [= Metorthoptera Crampton, 1927 = Brachycera Bey-Bienko, 1964 (non ...
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The evolutionary role and fate of the primary ovipositor in insects
Entomological Review, 2014The development of a piercing-sawing ovipositor for introducing eggs into living plant tissues has made its owners independent of the soil characteristics and increased egg protection. This was the most important prerequisite for the appearance of wings and flight which provided the winged insects with tremendous opportunities for finding new niches ...
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The Bitterling Ovipositor Reaction to Corticosterone
Science, 1938W, Fleischmann, S, Kann
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