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PUCERONS NOUVEAUX ET PEU CONNUS DU MEXIQUE 4e NOTE: NOUVELLES ESPECES DE TUBERCULATUS SUBG. TOLTECALLIS SUBG. NOV. (HOM. APHIDIDAE)

Published online by Cambridge University Press:  31 May 2012

G. Remaudière
Affiliation:
Institut Pasteur, F 75724 Paris Cedex 15, France
F. W. Quednau
Affiliation:
Centre de Recherches Forestières des Laurentides, Sainte-Foy, Québec, CanadaG1V 4C7

Abstract

Tuberculatus (Toltecallis) subg. nov. is characterized by the spiculation of the dorsal hairs of nymphs and by the basal pigmentation of the tibiae which differs from that of T. (Pacificallis). Three species are classified in the subgenus: T. (T.) mexicanus sp. n. (type of subgenus), distinguished by its long processus terminalis, T. (T.) garciamartelli sp. n. with spinal processes restricted to the two first abdominal segments and with short and thin spinal hairs on the embryo, and T. (T.) spiculatus Richards with processes on tergites I–IV and very long spinal setae on the embryo; the subspecies rebecae subsp. nov. of the last species has siphunculi and apical rostral segment longer and narrower at the base than in spiculatus s. str.

The viviparous winged form, the embryo, and the alatoid nymph are described. The sexual forms are unknown. All the species live on Quercus in the central part of Mexico between an elevation of 2200 and 2700 m.

Résumé

Tuberculatus (Toltecallis) subg. nov. est caractérisé par la présence d'une spiculation sur les soies dorsales des larves et par une pigmentation basale des tibias différente de celle de T. (Pacificallis). Trois espèces sont classées dans le sous-genre : T. (T.) mexicanus sp. n. (type du sous-genre), remarquable par la longueur de son processus terminal, T. (T.) garciamartelli sp. n. à processus spinaux limités aux deux premiers segments de l'abdomen et à embryons à soies spinales courtes et fines et T. (T.) spiculatus Richards à processus sur les tergites I à IV et à soies spinales de l'embryon très longues; la sous-espèce rebecae subsp. nov. de cette dernière espèce a des cornicules et un article apical du rostre plus longs et plus étroits à la base que chez spiculatus s. str.

Les ailés vivipares, les embryons et les nymphes sont décrits. Les formes sexuées sont inconnues. Toutes les espèces vivent sur Quercus dans la partie centrale du Mexique à une altitude comprise entre 2200 et 2700 m.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1983

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References

Hille Ris Lambers, D. (1972) 1974. New species of Tuberculatus Mordvilko, 1894 (Homoptera, Aphididae), with a key to species and some critical notes. Boll. Zool. agr. Bachic. ser. 2, 11: 2182.Google Scholar
Remaudière, G. 1982. Pucerons nouveaux et peu connus du Mexique. 3e note: le genre Mexicallis gen. n. (Hom. Aphididae). Annls Soc. ent. Fr., N.S., 18(3): 373390.Google Scholar
Richards, W. R. 1971. Tuberculatus spiculatus, a new aphid from Mexico (Homoptera: Aphididae). Can. Ent. 103, 107109.CrossRefGoogle Scholar

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PUCERONS NOUVEAUX ET PEU CONNUS DU MEXIQUE 4e NOTE: NOUVELLES ESPECES DE TUBERCULATUS SUBG. TOLTECALLIS SUBG. NOV. (HOM. APHIDIDAE)
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PUCERONS NOUVEAUX ET PEU CONNUS DU MEXIQUE 4e NOTE: NOUVELLES ESPECES DE TUBERCULATUS SUBG. TOLTECALLIS SUBG. NOV. (HOM. APHIDIDAE)
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PUCERONS NOUVEAUX ET PEU CONNUS DU MEXIQUE 4e NOTE: NOUVELLES ESPECES DE TUBERCULATUS SUBG. TOLTECALLIS SUBG. NOV. (HOM. APHIDIDAE)
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