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Pucerons Nouveaux et Peu Connus du Mexique 3e Note: le Genre Mexicallis Gen. N. [Hom. Aphididae] (1)

Pucerons Nouveaux et Peu Connus du Mexique 3e Note: le Genre Mexicallis Gen. N. [Hom. Aphididae] (1) Summary The genus Mexicallis, gen. n. lives on Quercus. It is mainly characterized by its very small size and the persistance of larval characters by apterous viviparous females (the only known form): antenna consisting of 4 or 5 segments, first tarsal joint with 2 or 3 hairs, pleural setae lacking, marginal hairs and often spinal hairs transformed into long spines with their surface more or less spiculated; in the subgenus Anacallis, exists a pair of long frontal processuses and duckbill like marginal processuses. The following species and subspecies are described: M. (M.) spinifer and ssp. longicaudus, M. (M.) analiliae and ssp. pumilus, M. (M.) calous and M. (A.) areolatus, spp. n. A key is given for these species. The surprisingly contrasted morphological variations between the 8 populations of M. analiliae studied here, represent a new challange of the neo-darwinian theory. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annales de la Société entomologique de France (N S ) Taylor & Francis

Pucerons Nouveaux et Peu Connus du Mexique 3e Note: le Genre Mexicallis Gen. N. [Hom. Aphididae] (1)

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Publisher
Taylor & Francis
Copyright
© 1982 Société entomologique de France
ISSN
2168-6351
eISSN
0037-9271
DOI
10.1080/21686351.1982.12278328
Publisher site
See Article on Publisher Site

Abstract

Summary The genus Mexicallis, gen. n. lives on Quercus. It is mainly characterized by its very small size and the persistance of larval characters by apterous viviparous females (the only known form): antenna consisting of 4 or 5 segments, first tarsal joint with 2 or 3 hairs, pleural setae lacking, marginal hairs and often spinal hairs transformed into long spines with their surface more or less spiculated; in the subgenus Anacallis, exists a pair of long frontal processuses and duckbill like marginal processuses. The following species and subspecies are described: M. (M.) spinifer and ssp. longicaudus, M. (M.) analiliae and ssp. pumilus, M. (M.) calous and M. (A.) areolatus, spp. n. A key is given for these species. The surprisingly contrasted morphological variations between the 8 populations of M. analiliae studied here, represent a new challange of the neo-darwinian theory.

Journal

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

Published: Jul 31, 1982

Keywords: Homoptera; Aphididae; Mexicallis; gen. nov.; Anacallis; sub. gen. nov. et espèces nouvelles; Mexique

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