Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Les Appareils Génitaux Male et Femelle de Chrysopa Perla [Neuroptera] Étude Anatomique Histologique et Fonctionnelle

Les Appareils Génitaux Male et Femelle de Chrysopa Perla [Neuroptera] Étude Anatomique... SUMMARY R. Philippe: The male and female reproductive systems of Chrysopa perla, (Neuroptera); anatomical, histological and functional study. An anatomical and histological study of the reproductive organs of Ch. perla, and also behavioral observations, permit us to define more precisely the functions of these organs. Before copulation, the male protrudes a pair of membranous sacks, furnished with long canaliculate bristles, from which flows an (aphrodisiac?) secretion. There is an intromitent organ, the hypovalve, but not a true aedeagus. The male accessory gland consists of seven paired pouches, which give four kinds of secretions; these produce a spermatophore, the structure of which is given in this article. In the female the genital opening is provided with a cover held in place by a « press stud » which must be opened so that copulation can take place. Then the spermatophore is deposited in the bursa copulatrix. On the other hand, during oviposition, the genital valves are separated, but the « press stud » remains closed. The female possesses, therefore, two functional genital openings, one for copulation, the other for oviposition. The accessory (colleterial) gland of the female is a very large median pouch, followed by a muscular reservoir, connected by a duct with the genital chamber. Close to its opening, the duct receives a pair of short tubuliform glands. The accessory gland secretes a mucous substance, whose histochemical characteristics are studied in this article: the secretion is rich in non-sulphated acid mucopolysaccharides and in proteins, which are either free or combined so as to form mucoproteins. During oviposition the female discharges a droplet of this mucous substance, spreads it on a support and stretches it into a thread, at the tip of which a single egg is fixed. Before its discharge the secretion fills the genital chamber and aids the egg to go out. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annales de la Société entomologique de France (N S ) Taylor & Francis

Les Appareils Génitaux Male et Femelle de Chrysopa Perla [Neuroptera] Étude Anatomique Histologique et Fonctionnelle

Download PDF
13 pages

Loading next page...
 
/lp/taylor-francis/les-appareils-g-nitaux-male-et-femelle-de-chrysopa-perla-neuroptera-yky2PQFKrx

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
Taylor & Francis
Copyright
© 1972 Société entomologique de France
ISSN
2168-6351
eISSN
0037-9271
DOI
10.1080/21686351.1972.12278045
Publisher site
See Article on Publisher Site

Abstract

SUMMARY R. Philippe: The male and female reproductive systems of Chrysopa perla, (Neuroptera); anatomical, histological and functional study. An anatomical and histological study of the reproductive organs of Ch. perla, and also behavioral observations, permit us to define more precisely the functions of these organs. Before copulation, the male protrudes a pair of membranous sacks, furnished with long canaliculate bristles, from which flows an (aphrodisiac?) secretion. There is an intromitent organ, the hypovalve, but not a true aedeagus. The male accessory gland consists of seven paired pouches, which give four kinds of secretions; these produce a spermatophore, the structure of which is given in this article. In the female the genital opening is provided with a cover held in place by a « press stud » which must be opened so that copulation can take place. Then the spermatophore is deposited in the bursa copulatrix. On the other hand, during oviposition, the genital valves are separated, but the « press stud » remains closed. The female possesses, therefore, two functional genital openings, one for copulation, the other for oviposition. The accessory (colleterial) gland of the female is a very large median pouch, followed by a muscular reservoir, connected by a duct with the genital chamber. Close to its opening, the duct receives a pair of short tubuliform glands. The accessory gland secretes a mucous substance, whose histochemical characteristics are studied in this article: the secretion is rich in non-sulphated acid mucopolysaccharides and in proteins, which are either free or combined so as to form mucoproteins. During oviposition the female discharges a droplet of this mucous substance, spreads it on a support and stretches it into a thread, at the tip of which a single egg is fixed. Before its discharge the secretion fills the genital chamber and aids the egg to go out.

Journal

Annales de la Société entomologique de France (N S ) – Taylor & Francis

Published: Jul 31, 1972

There are no references for this article.