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A REVIEW OF THE SPECIES OF NITIDOTACHINUS NEW GENUS (COLEOPTERA: STAPHYLINIDAE: TACHYPORINAE)

Published online by Cambridge University Press:  31 May 2012

J.M. Campbell
J.M. Campbell
Affiliation:
Centre for Land and Biological Resources Research, Agriculture Canada, Ottawa, Ontario, Canada K1A 0C6
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Abstract

A new genus, Nitidotachinus, is described in the subfamily Tachyporinae (Staphylinidae) to include the species formerly placed in the Tachyporoides and Impunctatus groups of Tachinus Gravenhorst and Tachinus excellens Bernhauer. The new genus includes 10 species, all previously described, from North America, Japan, China, and Taiwan. All major diagnostic characters for the genus are compared with those of Tachinus and illustrated with scanning electron photomicrographs or line drawings. The following new combinations are created by transferring the species from Tachinus to the new genus Nitidotachinus: N. adachii (Watanabe and Shibata), N. agilis (Horn), N. excellens (Bernhauer), N. horni (Campbell), N. impunctatus (Sharp), N. lanei (Hatch), N. sawadai (Watanabe and Shibata), N. scrutator (Gemminger and Harold), N. tachyporoides (Horn), and N. taiwanensis (Shibata).The 10 species of the genus are redescribed; the aedeagus is illustrated for all species, except N. excellens Bernhauer, known only from a unique female. A key is provided to aid in distinguishing the species and the phylogenetic relationships of the species of the genus are discussed.

Résumé

Le genre Nitidotachinus, défini ici, est un nouveau genre de la sous-famille des Tachyporinae (Staphylinidae); il contient les espèces classifiées auparavant dans les groupes Tachyporoides et Impunctatus du genre Tachinus Gravenhorst, ainsi que Tachinus excellens Bernhauer. Le nouveau genre contient 10 espèces, toutes déjà connues, d’Amérique du Nord, du Japon, de la Chine et de Taiwan. Toutes les caractéristiques diagnostiques du nouveau genre sont comparées à celles de Tachinus et sont illustrées au moyen de photomicrographies au microscope électronique à balayage ou au moyen de dessins. Le transfert des espèces de Tachinus au nouveau genre Nitidotachinus a donné lieu à de nouvelles combinaisons : N. adachii (Watanabe et Shibata), N. agilis (Horn), N. excellens (Bernhauer), N. horni (Campbell), N. impunctatus (Sharp), N. lanei (Hatch), N. sawadai (Watanabe et Shibata), N. scrutator (Gemminger et Harold), N. tachyporoides (Horn) et N. taiwanensis (Shibata).Les 10 espèces du genre sont décrites de nouveau et l’ædéage de chaque espèce est illustré, sauf dans le cas de N. excellens qui n’est connu que d’une femelle. Une clé d’identification permettra de distinguer les espèces. Les relations phylogénétiques entre les espèces du genre font l’objet d’une discussion.

[Traduit par la rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 125 , Issue 3 , June 1993 , pp. 521 - 548
Copyright
Copyright © Entomological Society of Canada 1993

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References

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