Orius majusculus (Reuter), a widespread Palearctic species, is reported in North America for the first time based on specimens collected in Ontario, Canada. A diagnosis, description, photographs of the adult, photomicrographs of selected structures, and illustrations of male genitalia are presented to help distinguish O. majusculus from other North America species of the genus.
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anthocoridae
Canada
description
Heteroptera
majusculus
new records
non-indigenous