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Alien true bugs (Hemiptera: Heteroptera) in Canada: composition and adaptations1

  • Geoffrey G.E. Scudder (a1) and Robert G. Foottit (a2)

The distribution, spread, and adaptations of the 81 alien heteropterous species recorded in Canada are summarized. Sixty-nine species had eastern introductions and 47 had western introductions; 35 were introduced separately on both coasts. Most of the alien species are mirids of European origin. Several of these alien mirids have adapted and become pests of fruit and other agricultural crops, and some have become useful predators. Only 3 have adapted and spread across the whole country.


Nous résumons la répartition l'étendue et les adaptations des 81 punaises (Heteroptera) exotiques au Canada. Soixante-neuf espèces sont venues de l'Est et 47 de l'Ouest. Trente-cinq de l'ensemble sont passées par les deux régions côtières. La plupart sont des mirides d'origine européenne. Certains mirides se sont adaptés, ravagent les récoltes de fruits et d'autres cultures ou sont des prédateurs utiles. Seuls 3 mirides se sont dispersés dans l'ensemble du pays.

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Presented as part of “Adaptations and Constraints: a Symposium in Honour of Richard Ring” at the Joint Annual General Meeting of the Entomological Societies of Canada and British Columbia, 3 November 2003, Kelowna, British Columbia.

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The Canadian Entomologist
  • ISSN: 0008-347X
  • EISSN: 1918-3240
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