Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

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

National Moth Week was July 23-31, 2022! See moth submissions.

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

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Family Geocoridae - Big-eyed Bugs

Big-eyed Bug - Geocoris Geocorid - Geocoris Geocoris? - Geocoris small True Bug - Geocoris Geocoris pallens vs punctipes - Geocoris pallens True bug sp. - Geocoris floridanus Hemiptera - Geocoris? - Geocoris Geocoris
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 subfamilies, not in NA) 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both papers out-of-date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)