Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Amphiareus obscuriceps

Little Red Biter - Amphiareus obscuriceps Lyctocoris campestris? - Amphiareus obscuriceps L. campestris? - Amphiareus obscuriceps Anthocorid - Amphiareus obscuriceps Minute Pirate Bug - Amphiareus obscuriceps Anthocoridae - Amphiareus obscuriceps Brown plant bug - Amphiareus obscuriceps Lasiochilid? - Amphiareus obscuriceps
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 Cimicoidea
Family Anthocoridae (Minute Pirate Bugs)
Tribe Dufouriellini
Genus Amphiareus
Species obscuriceps (Amphiareus obscuriceps)
Explanation of Names
Amphiareus obscuriceps (Poppius 1909)
Size
~2.5-3 mm(1)
Identification
It looks similar to Lasiochilus dorsally but tends to be more glossy across the hemelytra, and in Lasiochilus the dorsal hairs appear to be more erect and abundant. (comment by Steve Paiero)
Key characters: (1)
Yellow-brown coloration, with the head and pronotum noticeably darker
Corium smooth, impunctate.
Ostiolar channel directed backwards with an anteriorly curved carina.
Clavus with raised, tri-lobed setal bases; setal bases on apical part of scutellum multi-lobed.
Male parameres sickle-shaped.
Range
Native to Asia, recently introduced to NA (has spread across the eastern half of the US* & e Canada)(1) and Europe(2)
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*at least to c.TX (taken at my porch lights). =v=
Habitat
suburban/urban areas and woodlands; associated with dead-leaf habitats in the trees or on the ground; also brush piles, squirrel nests, and old tent caterpillar nests(1)
Season
year-round; adults may overwinter(1)
Food
small arthropods, probably including psocids, thrips, etc.(1)
Remarks
Earliest record in NA: MD 1983(1)
See Also
our other species, A. constrictus, has a more uniform yellowish-brown coloration(1)
Works Cited
1.First North American records of Amphiareus obscuriceps (Poppius) (Hemiptera: Heteroptera: Anthocoridae), with a discussion of...
Henry, T.J., Wheeler, A.G. and Steiner, W.E. 2008. Proceedings of the Entomological Society of Washington, 110: 402-416.
2.Alien terrestrial arthropods of Europe
Roques A., Kenis M., Lees D., Lopez-Vaamonde C., Rabitsch W., Rasplus J.-Y., Roy D., eds. 2010. BioRisk 4 Special Issue; 2 vols., 1028 pp.