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Review of the Ocalea group of genera (Coleoptera, Staphylinidae, Aleocharinae) in Canada and Alaska: new taxa, bionomics, and distribution

Published online by Cambridge University Press:  02 April 2012

Jan Klimaszewski  and
Georges Pelletier
Jan Klimaszewski*
Affiliation:
Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 du P.E.P.S., PO Box 3800, Sainte-Foy, Quebec, Canada G1V 4C7
Georges Pelletier
Affiliation:
Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 du P.E.P.S., PO Box 3800, Sainte-Foy, Quebec, Canada G1V 4C7
*
1Corresponding author (e-mail: jklimasz@nrcan.gc.ca).
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Abstract

A review of the Nearctic genera and Canadian and Alaskan species of the Ocalea group is presented. Ten genera are treated, with five erected as new: Alfocalea Klimaszewski gen. nov. (type species: A. montana Klimaszewski sp. nov.), Betocalea Klimaszewski gen. nov. (type species: B. pacifica Klimaszewski sp. nov.), Gennadota Casey (reinstated), Longipeltina Bernhauer, Megocalea Klimaszewski gen. nov. (type species: M. lemieuxi Klimaszewski sp. nov.), Metocalea Klimaszewski gen. nov. (type species: M. lindgreni Klimaszewski sp. nov.), Neoisoglossa (Casey) (nomen novum), Neothetalia Klimaszewski gen. nov. (type species: N. nimia (Casey)), Ocalea Erichson (restricted definition), and Parocalea Bernhauer. Twenty-four species of the Ocalea group are here recognized in the Nearctic region, fourteen of which occur in Canada. Six new species are described from western Canada and Alaska: Neothetalia smetanai Klimaszewski sp. nov. (Canada: British Columbia), Neothetalia canadiana Klimaszewski sp. nov. (Canada: British Columbia, Yukon Territory; United States: Alaska), Betocalea pacifica (Canada: British Columbia), Alfocalea montana (Canada: Alberta, British Columbia), Metocalea lindgreni (Canada: British Columbia), and Megocalea lemieuxi (Canada: British Columbia). The first record of Neoisoglossa agnita (Casey) in Alberta is provided. Two nominal species, Atheta (Athetalia) bicarniceps Casey (= Neoisoglossa) and Isoglossa grandicollis (Casey) (= Neoisoglossa), are here synonymized with Neoisoglossa arcuata (Casey). Aleochara pallitarsis Kirby has been transferred to the genus Neothetalia and is newly recorded from Alaska and British Columbia. Ocalea columbiana Klimaszewski has been transferred to Neothetalia and is newly recorded from Alaska. Neothetalia pallitarsis was formerly recorded from an unknown locality in North America and Neothetalia columbiana from the Carmanah Valley on Vancouver Island. Neothetalia nimia is newly recorded from Alaska. A new generic classification is proposed to accommodate species of the Nearctic Ocalea group. New data are provided on the systematics, relationships, bionomics, and distribution of the Nearctic species and genera of America north of Mexico. Diagnoses, colour images of entire bodies, and line illustrations of genital features are provided for those Canadian and Alaskan species that were not formerly illustrated, and their collection localities are plotted on maps. A key to Nearctic genera of the Ocalea group and the species occurring in Canada and Alaska is presented. The lectotypes have been designated for the following nominal species because the original series consisted of syntypes or represented mixed species or both sexes but with males bearing a better diagnostic set of characters: Aleochara picata Stephens (= Ocalea), Atheta (Athetalia) bicarniceps, Atheta (Athetalia) nimia Casey (= Neothetalia), Atheta (Athetalia) repensa Casey (= Neoisoglossa), Isoglossa arcuata Casey (= Neoisoglossa), Ocalea agnita Casey (= Neoisoglossa), Ocalea franciscana Casey (= Neoisoglossa), Ocalea fusca Fenyes (= Neoisoglossa), Ocalea grandicollis Casey (= Neoisoglossa), Pyroglossa grossa Bernhauer, Rheobioma disjuncta Casey (= Neoisoglossa), Rheobioma marcida Casey (= Neoisoglossa), and Rheobioma terrena Casey (= Neoisoglossa).

Résumé

Une revue des genres néarctiques et des espèces du Canada et de l'Alaska du groupe Ocalea est présentée. Dix genres sont traités dont cinq sont considérés comme nouveaux: Alfocalea Klimaszewski gen. nov. (type espèce: A. montana Klimaszewski sp. nov.), Betocalea Klimaszewski gen. nov. (type espèce: B. pacifica Klimaszewski sp. nov.), Gennadota Casey (rétablie), Longipeltina Bernhauer, Megocalea Klimaszewski gen. nov. (type espèce: M. lemieuxi Klimaszewski sp. nov.), Metocalea Klimaszewski gen. nov. (type espèce: M. lindgreni Klimaszewski sp. nov.), Neoisoglossa (Casey) (nomen novum), Neothetalia Klimaszewski gen. nov. (type espèce: N. nimia (Casey)), Ocalea Erichson (nouvelle définition restreinte) et Parocalea Bernhauer. Vingt-quatre espèces du groupe Ocalea sont maintenant reconnues dans l'ouest de la région néarctique, dont quatorze se retrouvent au Canada. Six nouvelles espèces venant de l'ouest du Canada et de l'Alaska sont décrites: Neothetalia smetania Klimaszewski sp. nov. (Canada: Colombie-Britannique), Neothetalia canadiana Klimaszewski sp. nov. (Canada: Colombie-Britannique, Territoire du Yukon; États-Unis: Alaska), Betocalea pacifica (Canada: Colombie-Britannique), Alfocalea montana (Canada: Alberta, Colombie-Britannique), Metocalea lindgreni (Canada: Colombie-Britannique) et Megocalea lemieuxi (Canada: Colombie-Britannique). La première mention de Neoisoglossa agnita Casey provient de l'Alberta. Deux espèces nominales, Atheta (Athetalia) bicarniceps Casey (= Neoisoglossa) et Isoglossa grandicollis (Casey) (= Neoisoglossa), sont maintenant considérées comme synonymes de Neoisoglossa arcuata (Casey). Aleochara pallitarsis Kirby est transféré au genre Neothetalia et est nouvellement recensé en Alaska et en Colombie-Britannique. Ocalea columbiana Klimaszewski est transféré au genre Neothetalia et est nouvellement recensé en Alaska. Neothetalia pallitarsis était auparavant recensé d'une localité inconnue en Amérique du Nord et Neothetalia columbiana de la vallée de Carmanah sur l'île de Vancouver. Neothetalia nimia est nouvellement recensé en Alaska. Une nouvelle classification générique est proposée pour tenir compte des espèces du groupe néarctique Ocalea. De nouvelles données sont fournies sur la systématique, les relations phylogénétiques, la biologie et la distribution géographique des espèces néarctiques et des genres d'Amérique situés au nord du Mexique. Les diagnoses, les illustrations en couleurs des corps entiers et les illustrations au trait des caractéristiques génitales sont fournies pour ces espèces du Canada et de l'Alaska qui n'étaient pas illustrées auparavant. Une carte de distribution est également fournie. Une clé des genres néarctiques du groupe Ocalea et des espèces présentes au Canada et en Alaska est présentée. Les lectotypes ont été désignés pour les espèces nominales suivantes puisque les séries originales étaient basées sur des syntypes, et qui représentaient un mélange d'espèces ou une représentation des deux sexes dans laquelle les mâles présentaient un meilleur ensemble de caractères spécifiques: Aleocharapicata Stephens (= Ocalea), Atheta (Athetalia) bicarniceps, Atheta (Athetalia) nimia Casey (= Neothetalia), Atheta (Athetalia) repensa Casey (= Neoisoglossa), Isoglossa arcuata Casey (= Neoisoglossa), Ocalea agnita Casey (= Neoisoglossa), Ocalea franciscana Casey (= Neoisoglossa), Ocalea fusca Fenyes (= Neoisoglossa), Ocalea grandicollis Casey (= Neoisoglossa), Pyroglossa grossa Bernhauer, Rheobioma disjuncta Casey (= Neoisoglossa), Rheobioma marcida Casey (= Neoisoglossa) et Rheobioma terrena Casey (Neoisoglossa).

Type
Articles
Information
The Canadian Entomologist , Volume 136 , Issue 4 , August 2004 , pp. 443 - 500
Copyright
Copyright © Entomological Society of Canada 2004

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