Results 231 to 240 of about 22,461 (272)

A mechanism for movement of eggs along insect ovipositors

International Journal of Insect Morphology and Embryology, 1981
Abstract 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
openaire   +1 more source

Ovipositor internal microsculpture in the Braconidae (Insecta, Hymenoptera)

Zoologica Scripta, 1998
Variation 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, MIKE G. FITTON, DONALD L. J. QUICKE   +2 more
openaire   +1 more source

The Morphology of the Ovipositor of Draeculacephala

Annals of the Entomological Society of America, 1933
The 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.
openaire   +1 more source

Sensory receptors of the ovipositor ofTrichogramma maidis [Hym.:Trichogrammatidae]

Entomophaga, 1990
Sensory 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
openaire   +1 more source

The ovipositor of Parandra brunnea Fab

1913
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

New diagnostic ovipositor characters for doryctine wasps (Hymenoptera, Braconidae)

Journal of Natural History, 1992
Characters previously used to distinguish the braconid wasp subfamily Doryctinae show considerable variation. Here we illustrate three new female external adult characters that will facilitate recognition of doryctines and allow precise definition of the subfamily.
D.L.J. Quicke, L.C. Ficken, M.G. Fitton
openaire   +1 more source

Variation in ovipositor morphology among laniatorean harvestmen (Arachnida: Opiliones)

Zoomorphology, 2015
There are relatively few published illustrations of ovipositors for harvestmen belonging to the suborder Laniatores. As a result, the ovipositor of these harvestmen has largely been ignored as a source of informative characters. We used scanning electron microscopy to examine the ovipositor of eight species representing several major lineages ...
Victor R. Townsend, Melinda S. Bertram, Marc A. Milne   +2 more
openaire   +1 more source

Has the Cuckoo a Protrusible Ovipositor?

1955
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Zur anatomie und funktion des raphidiopteren-ovipositors (inseeta, neuropteroidea)

Zeitschrift für Morphologie der Tiere, 1973
Auf Grund lichtmikroskopischer und rasterelektronenmikroskopischer Untersuchungen wird das Skeletmuskelsystem des Ovipositors von Raphidia flavipes Stein und R. ophiopsis L. beschrieben. Die Beobachtung der Eiablage ermoglichte eine funktionelle Deutung der anatomischen Strukturen. Die Untersuchung erbrachte folgende Ergebnisse: 1.
openaire   +1 more source

The Ovipositor System of Isostasius (Platygastroidae: Platygastreidae)

The ovipositor of Isostasius species is unique to the Platygastridae family and is characterized by a system of coiled valvulae. This morphological structure acts as a hypodermic needle comprising hollow tubes that facilitate egg-laying. The coiling mechanism assists in oviposition in parasitoid wasps, encouraging egg deposition in isolated larvae with
openaire   +1 more source