Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Family Geocoridae - Big-eyed Bugs

Big-eyed Bug - Geocoris punctipes Big-eyed Bug - Geocoris uliginosus Geocoridae 6-30-11 01a - Geocoris pallens Big-eyed bug - Geocoris uliginosus Bug - Geocoris bullatus Isthmocoris piceus? - Isthmocoris piceus Geocoris sp ? - Geocoris Small black bug - Geocoris uliginosus
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 Pentatomomorpha
Superfamily Lygaeoidea
Family Geocoridae (Big-eyed Bugs)
Synonyms and other taxonomic changes
formerly treated under Lygaeidae
Explanation of Names
Geocoridae Baerensprung 1860
~30 spp. in 2 genera in our area (all in Geocorinae), ~300 spp. in 35 genera of 5 subfamilies worldwide; Geocoris, with ~150 spp., is by far the largest genus(1)
~3‒5 mm
Habitus distinctive, with eyes prominent, partially wrapping around the front angles of the pronotum. Dorsum conspicuously punctate. Claval commisure very short or absent.
worldwide and throughout NA(1)
Geocorinae are predatory, the rest (2 small extralimital subfamilies) are assumed to be phytophagous, probably granivorous(2)
Print References
both papers out-of-date
Barber H.G. (1935) New Geocoris from the United States, with key to species (Lygaeidae: Geocorinae). J. N.Y. Ent. Soc. 43: 131–137. (Full text)
McAtee W.L. (1914) Key to the nearctic genera and species of Geocorinae (Heteroptera: Lygaeidae). Proc. Biol. Soc. Wash. 27: 125–136. (Full text)