Ants (Family Formicidae)
of Orange County, California (and nearby places)

(Click on images or names to open). Yellow background, exotic species. Useful note on Terminology

Photographed and compiled by Peter J. Bryant (pjbryant@uci.edu)
Department of Developmental and Cell Biology, 
University of California, Irvine, CA 92697
and Ron Hemberger
Species lists in this family from "Spatial patterns of occurrence of the invasive argentine ant (Linepithema humile) and associated impacts on the native ant community in coastal southern California" by Milan Mitrovich, Nature Reserve of Orange County and Robert Fisher, Tritia Matsuda, and Krista Pease, US Geological Survey. November, 2006. Asterisk indicates exotic species. Anatomy
Subfamily Dolichoderinae

Dorymyrmex insanus
Pyramid Ant, Dorymyrmex sp.
Pyramid Ant, Dorymyrmex sp.
Forelius pruinosus		 Argentine Ant, Linepithema humile

California Velvety Tree Ant, Liometopum occidentale
Odorous House Ant,
Tapinoma sessile		 Dorymyrmex bicolor
Dorymyrmex insanus
Forelius foetidus
Forelius pruinosus
Linepithema humile*
Liometopum occidentale
Tapinoma sessile		  
Subfamily Ecitoninae    


Legionary Ant,
Neivamyrmex (californicus?)

Neivamyrmex californicus
Neivamyrmex nigrescens
Neivamyrmex opacithorax
Undentified		    
Subfamily Formicinae

Rover Ant,
Brachymyrmex patagonicus
Carpenter Ant,
Camponotus dumetorum
Carpenter Ant, Camponotus ochreatus, worker female
Carpenter Ant, Camponotus ochreatus, male
Carpenter Ant, Camponotus ochreatus, queen

Field Ant,
Formica francoeuri
Field Ant,
Formica fusca group
Field Ant,
Formica moki
Honeypot Ant,
Myrmecocystus sp.
Winged Ant,
Nylanderia vividula

False honey Ant,
Prenolepis imparis
Winged Ant,
Pseudomyrmex sp.


Winged Ant,
Liometopum occidentale ?

Brachymyrmex depilis
Camponotus sayi
Camponotus semitestaceus
Camponotus spp. CA-
Camponotus vicinus
Formica francoeuri
Formica moki
Formica neogagates group
Formica xerophila

 Myrmecocystus kennedyi
Myrmecocystus mexicanus
Myrmecocystus mimicus
Myrmecocystus semirufus
Myrmecocystus testaceus
Paratrechina c.f. terricola
Polyergus breviceps
Prenolepis imparis
Subfamily Myrmicinae
Acrobat Ant, Crematogaster sp.
Harvester Ant, Messor andrei (worker)
Winged Ant, Messor sp. (male)
Winged Ant, Myrmecina americana		  

Harvester Ant, Pogonomyrmex californicus subnitidus
Red Imported Fire Ant,
Solenopsis invicta, worker
Red Imported Fire Ant,
Solenopsis invicta, male
Desert Ant, Veromessor pergandei		  
Cardiocondyla ectopia*
Crematogaster californica
Crematogaster coarctata
Crematogaster hespera
Crematogaster mormonum
Cyphomyrmex wheeleri
Messor andrei
Messor stoddardi
Monomorium ergatogyna
Monomorium minimum
 Monomorium pharaonis*
Myrmecina americana
Pheidole cerebrosior
Pheidole clementensis
Pheidole hyatti
Pheidole vistana
Pogonomyrmex rugosus
Pogonomyrmex subnitidus		 Solenopsis amblychila
Solenopsis aurea
Solenopsis molesta
Solenopsis xyloni
Temnothorax andrei
Temnothorax nevadensis
Temnothorax nitens
Temnothorax sp CA-		    
Subfamily Pseudomyrmecinae      

Pseudomyrmex apache