Orius insidiosus
This record describes Orius insidiosus (species). Recorded family: Anthocoridae. Recorded order: Hemiptera.
Identification and Appearance

Early nymphs have slight yellowish tinge, getting progressively darker in each successive instar. Adults are mahogany color. by far the commonest anthocorid in the entire eastern & central part of the continent ; important predator of phytophagous mites and mite eggs, insect eggs, soft-bodied insects
Wikipedia reference for Orius insidiosus: http://en.wikipedia.org/wiki/Orius_insidiosus.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
- Suborder
- Heteroptera
- Superfamily
- Cimicoidea
- Family
- Anthocoridae (Minute Pirate Bugs)
- Tribe
- Oriini
- Genus
- Orius
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
e. NA (QC-FL to MB-CO-TX; CA, *BC) to S. America; W. Indies - Map *introduced, prob. not established
Diet and Behavior
Diet: Generalist predator Common predator of insect eggs ( 6 )
Life History
Overwinters as adult. Nymphs go through 5 instars. Can develop from egg to adult on pollen alone. ( 7 )
Additional species information
Species notes from the sources
Etymology: Orius insidiosus (Say 1832)
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Orius insidiosus. Species-specific details appear above.
Group overview
Hemiptera (true bugs) includes over 80,000 described species across cicadas, aphids, leafhoppers, shield bugs, and bed bugs. Aphids alone cost global agriculture an estimated $2.5 billion annually in crop losses.
Ecological role of the group
Many Hemiptera are essential food sources for birds and predatory insects. Cicadas provide massive nutrient pulses during emergence events - a single Brood X emergence can involve trillions of individuals across 15 states.
Economic and practical significance of the group
The brown marmorated stink bug (Halyomorpha halys) caused $37 million in apple crop losses in a single year in the U.S. Mid-Atlantic region. Bed bug infestations in the U.S. increased by 500% between 2001-2010, costing the hotel industry hundreds of millions annually.
Recorded sources for this group: USDA, EPA, University research. Imported estimates may describe particular regions or reporting periods.
Photos of Orius insidiosus (3)
Photo credits: Contributed by tom murray; Additional contributions by Beatriz Moisset , Robin McLeod , Bbarnd , Mike Quinn , ceiseman , v belov , Marci Hess
Frequently Asked Questions About Orius insidiosus
What is Orius insidiosus?
Orius insidiosus is a species in the family Anthocoridae, within the order Hemiptera.
How big is Orius insidiosus?
~2 mm
How do you identify Orius insidiosus?
Early nymphs have slight yellowish tinge, getting progressively darker in each successive instar. Adults are mahogany color.
Where is Orius insidiosus found?
Range: e. NA (QC-FL to MB-CO-TX; CA, *BC) to S. America; W. Indies - Map *introduced, prob. not established
What does Orius insidiosus eat?
The diet of the Orius insidiosus includes Generalist predator Common predator of insect eggs ( 6 ).
What is the life cycle of a Orius insidiosus?
Overwinters as adult. Nymphs go through 5 instars. Can develop from egg to adult on pollen alone. ( 7 )
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