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Species Adelphocoris rapidus - Rapid Plant Bug

True Bug nymph - Adelphocoris rapidus Rapid Plant Bug (Adelphocoris rapidus)? - Adelphocoris rapidus Rapid plant bug - Adelphocoris rapidus - Adelphocoris rapidus Plant Bug - Adelphocoris rapidus ID? - Adelphocoris rapidus Red Plant Bug - Adelphocoris rapidus Plant bug id? - Adelphocoris rapidus Adelphocoris rapidus
Classification
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 Miroidea
Family Miridae (Plant Bugs)
Subfamily Mirinae
Tribe Mirini
Genus Adelphocoris
Species rapidus (Rapid Plant Bug)
Other Common Names
Superb Plant Bug
Synonyms and other taxonomic changes
A. superbus (Uhler 1875); A. dinsmorei Bliven 1959; A. idahoensis Bliven 1959
Explanation of Names
Adelphocoris rapidus (Say 1832)
rapidus 'quick'
Size
7―8 mm
Identification
note: very long antenna, a relatively small head, and the color of the antennal segments (adapted from wongun's comments on iNat)
first image is the most common form:

these alternate forms (A. superbus) are of western distribution:
Range
most of NA (AK―NS to Mexico; map)(1)(2)(3)
Season
May-Oct(3)
Food
Feeds mostly on dock (Rumex), sometimes on cotton, legumes (Fabaceae)(4)
Life Cycle
Eggs deposited individually in host soft tissue. Adults disperse in summer and early fall, one or more generations per year
Works Cited
1.Checklist of the Hemiptera of Canada and Alaska
Maw, H.E.L., R.G. Foottit, K.G.A. Hamilton and G.G.E. Scudder. 2000. NRC Research Press.
2.Alaskan Heteroptera (Hemiptera): New records, associated data, and deletions
Scudder G.G.E., Sikes D.S. 2014. Zootaxa 3852: 373-381.
3.Global Biodiversity Information Facility (GBIF)
4.How to Know the True Bugs
Slater, James A., and Baranowski, Richard M. 1978. Wm. C. Brown Company.