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Recherches sur l'Appareil Respiratoire des Blattes II. — Les Vésiculisations Trachéennes et leur Évolution dans le Sous-Ordre des Blattaria

Recherches sur l'Appareil Respiratoire des Blattes II. — Les Vésiculisations Trachéennes et... Summary J.L. Baudet & E. Sellier: The respiration system of the Cockroaches. II - The dilatations of the tracheae and their taxonomic significance in the Blattaria. Nine species of cockroaches are studied in this paper; many distinctions separate them. The main groups of differences are the number of tracheae, the pattern of the tracheal network and the possible dilatation of them. Both sexes of each species have similar respiratory systems. Specific dilatations, when they exist, are generally present at birth and enlarge progressively when moulting. Such air sacs form on connecting tracheae, mainly in the abdomen. We compare the evolution of the respiratory system with that of other specific characters: the size of the wings, and the reproductive behaviour of the female. It clearly results that air sacs are not especially suitable for ovoviviparity, oviparity or flight. The dilatation of the tracheae is generally slight when the respiratory system is simple, and on the contrary, air sacs are very numerous and bulky when the tracheal network is complex. We conclude that the respiratory system of the Blattaria follows an evolution which confirms McKittrick's classification of this suborder. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annales de la Société entomologique de France (N S ) Taylor & Francis

Recherches sur l'Appareil Respiratoire des Blattes II. — Les Vésiculisations Trachéennes et leur Évolution dans le Sous-Ordre des Blattaria

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Publisher
Taylor & Francis
Copyright
© 1975 Société entomologique de France
ISSN
2168-6351
eISSN
0037-9271
DOI
10.1080/21686351.1975.12278547
Publisher site
See Article on Publisher Site

Abstract

Summary J.L. Baudet & E. Sellier: The respiration system of the Cockroaches. II - The dilatations of the tracheae and their taxonomic significance in the Blattaria. Nine species of cockroaches are studied in this paper; many distinctions separate them. The main groups of differences are the number of tracheae, the pattern of the tracheal network and the possible dilatation of them. Both sexes of each species have similar respiratory systems. Specific dilatations, when they exist, are generally present at birth and enlarge progressively when moulting. Such air sacs form on connecting tracheae, mainly in the abdomen. We compare the evolution of the respiratory system with that of other specific characters: the size of the wings, and the reproductive behaviour of the female. It clearly results that air sacs are not especially suitable for ovoviviparity, oviparity or flight. The dilatation of the tracheae is generally slight when the respiratory system is simple, and on the contrary, air sacs are very numerous and bulky when the tracheal network is complex. We conclude that the respiratory system of the Blattaria follows an evolution which confirms McKittrick's classification of this suborder.

Journal

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

Published: Jul 31, 1975

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