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THE CARABID BEETLES OF INSULAR NEWFOUNDLAND (COLEOPTERA: CARABIDAE: CICINDELLIDAE) — 30 YEARS AFTER LINDROTH

Published online by Cambridge University Press:  31 May 2012

David J. Larson  and
David W. Langor
David J. Larson
Affiliation:
Department of Biology, Memorial University of Newfoundland, St. John's A1B 3X9
David W. Langor
Affiliation:
Department of Biology, Memorial University of Newfoundland, St. John's A1B 3X9
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Abstract

The present carabid beetle fauna (sensu Lindroth 1955, including Carabidae and Cicindellidae) of Newfoundland is compared with that observed by C. H. Lindroth 30 years ago. Five additional species are now known bringing the faunal total to 171 species. Two of these additional species, Chlaenius alternates and Lebia moesta are Nearctic while Carabus granulatus, Leistus ferrugineus, and Bembidion properans are of Palaearctic origin. The known ranges of an additional seven introduced species have increased. The patterns of these range changes support two models of Palaearctic species establishment in Newfoundland: by direct human-assisted introduction onto the island; and through flight across the Cabot Strait by winged species initially established on the North American mainland.

Résumé

La faune carabique (sensu Lindroth 1955, incluant les Carabidae et les Cicindellidae) actuelle de Terre-Neuve est comparée à celle rapportée par Lindroth il y a trente ans. Cinq espèces additionnelles sont maintenant connues, portant le total à 171 espèces. Deux de ces espèces, Chlaenius alternatus et Lebia moesta ont une distribution néarctique alors que Carabus granulatus, Leistus ferrugineus et Bembidion properans sont d'origine paléarctique. Les distributions connues de 7 espèces additionnelles introduites se sont étendues. Les caractéristiques de ces extensions de distribution appuient deux modèles d'établissement d'espèces paléarctiques à Terre-Neuve : introduction via l'assistance directe de l'homme; et par la voie des airs au-dessus du détroit de Cabot pour les espèces ailées préalablement établies sur le continent Nord-Américain.

Type
Articles
Information
The Canadian Entomologist , Volume 114 , Issue 7 , July 1982 , pp. 591 - 597
Copyright
Copyright © Entomological Society of Canada 1982

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