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Étude Ultramorphologique des Sensilles Antennaires des Sésiidés Essai sur l'Origine et les Étapes de la Morphogenèse des Sensilles Antennaires des Lépidoptères

Étude Ultramorphologique des Sensilles Antennaires des Sésiidés Essai sur l'Origine et les... Summary Ultramorphological study of the antennary sensors of the Sesiidae; an attempt on the origin and the stages of the morphogenesis of the Lepidoptera antennary sensors. The study of the sensors of the Lepidoptera Sesiidae antenna presents a strong interest about the origin and the possible evolution of these sensory structures. Sesiidae are insects which, as well as at the nymphal stage than at the imaginai one, have kept somme patterns considered as primitive. The antennary sensory apparatus of these Lepidoptera include well structured, typical sensors which we can divide into nine principal categories, different functions being attributed to each of them: Sensilla chaetica, Böhm, bristles, apical sensors, sensilla trichoidea, s. basiconica, s. auricillica, capitate pegs, s. coeloconica, s. styloconica. In addition to these sensors, in this Lepidoptera family, more rudimentary structures exist, contrary to what we can observe among more evolved Lepidoptera like Rhopalocera, for exemple. They allow to express the hypothesis that sensors come originally from simple cuticulary asperities; these asperities did individualize themselves and across a succession of intermediary forms, have evolved, through a certain number of stages, towards the sensillary types that we know. A scanning electron microscopy study permits to put in evidence these intermediary forms, principaly among females of some species, the Sesiidae females having kept more of these primitive characters than the males. A question stays up: from which stage, from which period, a simple cuticular asperity beginning to be structured into a sensor, did it become functionnal, and what may be actually the exact function of these intermediary formations leading to sensory receptors of various functions? http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annales de la Société entomologique de France (N S ) Taylor & Francis

Étude Ultramorphologique des Sensilles Antennaires des Sésiidés Essai sur l'Origine et les Étapes de la Morphogenèse des Sensilles Antennaires des Lépidoptères

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Publisher
Taylor & Francis
Copyright
© 1977 Société entomologique de France
ISSN
2168-6351
eISSN
0037-9271
DOI
10.1080/21686351.1977.12278638
Publisher site
See Article on Publisher Site

Abstract

Summary Ultramorphological study of the antennary sensors of the Sesiidae; an attempt on the origin and the stages of the morphogenesis of the Lepidoptera antennary sensors. The study of the sensors of the Lepidoptera Sesiidae antenna presents a strong interest about the origin and the possible evolution of these sensory structures. Sesiidae are insects which, as well as at the nymphal stage than at the imaginai one, have kept somme patterns considered as primitive. The antennary sensory apparatus of these Lepidoptera include well structured, typical sensors which we can divide into nine principal categories, different functions being attributed to each of them: Sensilla chaetica, Böhm, bristles, apical sensors, sensilla trichoidea, s. basiconica, s. auricillica, capitate pegs, s. coeloconica, s. styloconica. In addition to these sensors, in this Lepidoptera family, more rudimentary structures exist, contrary to what we can observe among more evolved Lepidoptera like Rhopalocera, for exemple. They allow to express the hypothesis that sensors come originally from simple cuticulary asperities; these asperities did individualize themselves and across a succession of intermediary forms, have evolved, through a certain number of stages, towards the sensillary types that we know. A scanning electron microscopy study permits to put in evidence these intermediary forms, principaly among females of some species, the Sesiidae females having kept more of these primitive characters than the males. A question stays up: from which stage, from which period, a simple cuticular asperity beginning to be structured into a sensor, did it become functionnal, and what may be actually the exact function of these intermediary formations leading to sensory receptors of various functions?

Journal

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

Published: Apr 30, 1977

Keywords: microscope électronique à balayage; ultramorphologie; morphogenèse; antennes; sensilles; récepteurs sensoriels; Lepidoptera; Sesiidae

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