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Recherches en Microscopie Électronique par Balayage, sur l'Ultrastructure de l'Appareil Androconial Alaire dans le Genre Argynnis et dans les Genres Voisins [Lep. Rhopaloceres Nymphalides]

Recherches en Microscopie Électronique par Balayage, sur l'Ultrastructure de l'Appareil... Summary R. Sellier: Research with scanning electron microscopy, on the ultrastructure of the scent apparatus of the male wing in the genus Argynnis and in the nearly allied genera (Lep. Rhopalocera Nymphalidae). In the division of the Argynnis (s. l.), Argynnis paphia L., Pandoriana pandora Schiff., Mesoacidalia aglaja L., Fabriciana adippe Schiff., F. niobe L. and F. elisa God. have scent scales which are more or less densely clustered according to the species, on a level with some nervures of the upper face of the front male wings. These areas are found under peculiar scales: the covering scales. The scent scales which are always elongate, present different morphological types: acuminate, like a paddle or a thready spatula, or a panache, or a plume. From the ultrastructural point of view, observed in scanning electron microscopy, they let see through the orifices of their surface, a granulous internal structure which makes them different from the common pigmentary scales. The filaments of the top, if they have any, are only the prolongations of the ribs which always exist on the upper face of every scale of Butterflies. These filaments end in a more or less marked dilatation. A peculiar species can only have one type of scent scales, or several types can coexist in one species or even on a level with one nervure of this species. Generally speaking, this distribution seems to be made as a function of the disposition of the covering scales. Some of these scales seem to be definitely fixed in their morphology, and others, on the other hand, still are very likely in process of evolution. As far as the way of the functioning of the scent scales is concerned, one can suppose that the produced substances are given off on a level with the body of the scale, and that the granulous internal structure, presenting a large surface, thus favours the evaporation. The scent vapours would be caught by the females, on a level with chimioreceptor sensory hairs, situated at the extremity of the antennae. The question of the utility or the necessity of the scent apparatus is set; in fact, some species nearly allied to those which have been studied, are deprived of such an apparatus. However, for the latter the sexual attraction takes place and the reproduction is normally carried out. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annales de la Société entomologique de France (N S ) Taylor & Francis

Recherches en Microscopie Électronique par Balayage, sur l'Ultrastructure de l'Appareil Androconial Alaire dans le Genre Argynnis et dans les Genres Voisins [Lep. Rhopaloceres Nymphalides]

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Publisher
Taylor & Francis
Copyright
© 1973 Société entomologique de France
ISSN
2168-6351
eISSN
0037-9271
DOI
10.1080/21686351.1973.12278943
Publisher site
See Article on Publisher Site

Abstract

Summary R. Sellier: Research with scanning electron microscopy, on the ultrastructure of the scent apparatus of the male wing in the genus Argynnis and in the nearly allied genera (Lep. Rhopalocera Nymphalidae). In the division of the Argynnis (s. l.), Argynnis paphia L., Pandoriana pandora Schiff., Mesoacidalia aglaja L., Fabriciana adippe Schiff., F. niobe L. and F. elisa God. have scent scales which are more or less densely clustered according to the species, on a level with some nervures of the upper face of the front male wings. These areas are found under peculiar scales: the covering scales. The scent scales which are always elongate, present different morphological types: acuminate, like a paddle or a thready spatula, or a panache, or a plume. From the ultrastructural point of view, observed in scanning electron microscopy, they let see through the orifices of their surface, a granulous internal structure which makes them different from the common pigmentary scales. The filaments of the top, if they have any, are only the prolongations of the ribs which always exist on the upper face of every scale of Butterflies. These filaments end in a more or less marked dilatation. A peculiar species can only have one type of scent scales, or several types can coexist in one species or even on a level with one nervure of this species. Generally speaking, this distribution seems to be made as a function of the disposition of the covering scales. Some of these scales seem to be definitely fixed in their morphology, and others, on the other hand, still are very likely in process of evolution. As far as the way of the functioning of the scent scales is concerned, one can suppose that the produced substances are given off on a level with the body of the scale, and that the granulous internal structure, presenting a large surface, thus favours the evaporation. The scent vapours would be caught by the females, on a level with chimioreceptor sensory hairs, situated at the extremity of the antennae. The question of the utility or the necessity of the scent apparatus is set; in fact, some species nearly allied to those which have been studied, are deprived of such an apparatus. However, for the latter the sexual attraction takes place and the reproduction is normally carried out.

Journal

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

Published: Jul 31, 1973

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