Adalia decempunctata (Coleoptera: Coccinellidae), a Palaearctic species now established in North America

Abstract The Palaearctic ten-spotted lady beetle, Adalia decempunctata (Linnaeus), has been confirmed as established in North America, based on morphological characters and DNA barcodes. Its distribution currently appears limited to the Avalon Peninsula of the island of Newfoundland, Canada. Several...

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Bibliographic Details
Published in:The Canadian Entomologist
Main Authors: Langor, David W., Abraham, Shawn, Hicks, Barry, James Hammond, H.E.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 2023
Subjects:
Insect Science
Molecular Biology
Physiology
Ecology, Evolution, Behavior and Systematics
Structural Biology
Canada
Newfoundland
Online Access:http://dx.doi.org/10.4039/tce.2023.23
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X23000238
Description
Summary:Abstract The Palaearctic ten-spotted lady beetle, Adalia decempunctata (Linnaeus), has been confirmed as established in North America, based on morphological characters and DNA barcodes. Its distribution currently appears limited to the Avalon Peninsula of the island of Newfoundland, Canada. Several characters, including the colour of the mesepimera, frons, labrum, antennal club, mouthparts, and legs, are reliable for discriminating among this species and the native, Holarctic two-spotted lady beetle, Adalia bipunctata (Linnaeus), in Newfoundland. An identification key to the two species is provided.

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