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Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

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Previous events


Genus Orius

Minute Pirate Bug - Orius insidiosus Orius insidiosus? - Orius insidiosus Anthocorid - Orius insidiosus Orius insidiosus Insidious Flower Bug - Orius insidiosus Orius insidiosus Hemiptera - Orius Bug 1-2mm - Orius tristicolor
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Infraorder Cimicomorpha
Superfamily Cimicoidea
Family Anthocoridae (Minute Pirate Bugs)
Tribe Oriini
Genus Orius
Explanation of Names
Orius Wolff 1811
8 spp. (of which two introduced) in our area(1)
Revision of our species in(2); key to Canadian species in(3)
Cosmopolitan(4); widespread in NA
can be found anywhere its food is available; common in agricultural settings and weedy areas
insect eggs, aphids, thrips, spider mites, and other small insects
Life Cycle
Development from egg to adult takes at least 20 days; multiple generations per year
Used as biocontrol agents. May bite humans.
Print References
Shapiro J.P., Shirk P.D., Reitz S.R., Koenig R. (2009) Sympatry of Orius insidiosus and O. pumilio (Hemiptera:Anthocoridae) in north central Florida. Florida Entomologist 92: 362-366 (Abstract)
Internet References
Works Cited
1.First North American records for the Palearctic Orius majusculus (Reuter) (Hemiptera: Heteroptera: Anthocoridae)
Henry, T.J. 2008. Proceedings of the Entomological Society of Washington 110(4): 953-959.
2.The genus Orius of the western hemisphere (Hemiptera: Anthocoridae)
Herring, J.L. 1966. Annals of the Entomological Society of America, 59 (6):, 1093-1109.
3.The Insects and Arachnids of Canada Part 4: The Anthocoridae of Canada and Alaska
Leonard A. Kelton. 1978. Supply and Services Canada.
4.Australian Faunal Directory
5.Biological control: A guide to natural enemies in North America