Subfamily Genus Subgenus Species Group Species Species Author Date Distribution Biology Notes Myrmicinae Aphaenogaster boulderensis M.R. Smith Myrmicinae Aphaenogaster huachucana Creighton Myrmicinae Aphaenogaster occidentalis (Emery) Myrmicinae Aphaenogaster uinta Wheeler Formicinae Brachymyrmex depilis Emery Formicinae Camponotus essigi M.R. Smith Formicinae Camponotus herculeanus (Linnaeus) Formicinae Camponotus hyatti Emery Formicinae Camponotus laevigatus (F. Smith) Formicinae Camponotus modoc Wheeler Formicinae Camponotus nearcticus Emery Formicinae Camponotus noveboracensis (Fitch) Formicinae Camponotus ocreatus Emery Formicinae Camponotus sansabeanus (Buckley) Formicinae Camponotus semitestaceus Emery Formicinae Camponotus vicinus Mayr Myrmicinae Crematogaster cerasi (Fitch) Myrmicinae Crematogaster coarctata Mayr Myrmicinae Crematogaster depilis Wheeler Myrmicinae Crematogaster emeryana Creighton Myrmicinae Crematogaster hespera Buren Myrmicinae Crematogaster missuriensis Emery Myrmicinae Crematogaster mormonum Emery Myrmicinae Crematogaster navajoa Buren Myrmicinae Crematogaster nocturna Buren Dolichoderinae Dorymyrmex bicolor (Wheeler) Dolichoderinae Dorymyrmex insanus (Buckley) Dolichoderinae Dorymyrmex UT01 Dolichoderinae Forelius mccooki (McCook) Dolichoderinae Forelius pruinosus (Roger) Formicinae Formica accreta Francoeur Formicinae Formica aerata Francoeur Formicinae Formica altipetens Wheeler Formicinae Formica argentea Wheeler Formicinae Formica aserva Forel Formicinae Formica calviceps Cole Formicinae Formica canadensis Santschi Formicinae Formica ciliata Mayr Formicinae Formica coloradensis Creighton Formicinae Formica comata Wheeler Formicinae Formica criniventris Wheeler Formicinae Formica dakotensis Emery Formicinae Formica densiventris Viereck Formicinae Formica fossaceps Buren Formicinae Formica fusca Linnaeus Formicinae Formica gnava Buckley Formicinae Formica gynocrates Snelling & Buren Formicinae Formica hewitti Wheeler Formicinae Formica integroides Emery Formicinae Formica laeviceps Creighton Formicinae Formica lasioides Emery Formicinae Formica limata Wheeler Formicinae Formica manni Wheeler Formicinae Formica microgyna Wheeler Formicinae Formica mucescens Wheeler Formicinae Formica neoclara Emery Formicinae Formica neogagates Emery Formicinae Formica neorufibarbis Emery Formicinae Formica obscuripes Forel Formicinae Formica obscuriventris Mayr Formicinae Formica obtusopilosa Emery Formicinae Formica occulta Francoeur Formicinae Formica opaciventris Emery Formicinae Formica oreas Wheeler Formicinae Formica pallidefulva Emery Formicinae Formica perpilosa Wheeler Formicinae Formica podzolica Francoeur Formicinae Formica puberula Emery Formicinae Formica ravida Creighton Formicinae Formica subnitens Creighton Formicinae Formica subpolita Mayr Formicinae Formica transmontanis Francoeur Formicinae Formica wheeleri Creighton Formicinae Formica xerophila M.R. Smith Myrmicinae Formicoxenus chamberlini (Wheeler) Myrmicinae Formicoxenus diversipilosus M.R.Smith Myrmicinae Formicoxenus hirticornis (Emery) Ponerinae Hypoponera opaciceps (Mayr) Ponerinae Hypoponera opacior (Forel) Dolichoderinae Linepithema humile (Mayr) Formicinae Lasius alienus (Foerster) Formicinae Lasius coloradensis (Wheeler) Formicinae Lasius creightoni Wing Formicinae Lasius crypticus Wilson Formicinae Lasius fallax Wilson Formicinae Lasius humilis Wheeler Formicinae Lasius interjectus (Mayr) Formicinae Lasius latipes (Walsh) Formicinae Lasius murphyi (Forel) Formicinae Lasius niger Linnaeus Formicinae Lasius occidentalis (Wheeler) Formicinae Lasius pallitarsis (Provancher) Formicinae Lasius sitiens Wilson Formicinae Lasius xerophilus_nr McKay Formicinae Lasius subumbratus Viereck Formicinae Lasius umbratus (Nylander) Formicinae Lasius vestitus Wheeler Myrmicinae Leptothorax crassipilis Wheeler Myrmicinae Leptothorax muscorum (Nylander) Dolichoderinae Liometopum occidentale Wheeler Myrmicinae Manica hunteri (Wheeler) Myrmicinae Manica invidia Nylander Myrmicinae Messor lobognathus Andrews Myrmicinae Monomorium wheelerorum DuBois Formicinae Myrmecocystus flaviceps Wheeler Formicinae Myrmecocystus hammettensis Cole Formicinae Myrmecocystus kennedyi Cole Formicinae Myrmecocystus mendax Wheeler Formicinae Myrmecocystus mexicanus Wesmael Formicinae Myrmecocystus mimicus Formicinae Myrmecocystus navajo Wheeler Formicinae Myrmecocystus pyramicus Smith Formicinae Myrmecocystus romainei Cole Formicinae Myrmecocystus semirufus Emery Formicinae Myrmecocystus testaceus Emery Myrmicinae Myrmica americana Weber Myrmicinae Myrmica brevispinosa Wheeler Myrmicinae Myrmica hamulata Weber Myrmicinae Myrmica incompleta Provancher Myrmicinae Myrmica monticola Wheeler Ecitoninae Neivamyrmex californicus (Mayr) Myrmicinae Pheidole artemisia Cole Myrmicinae Pheidole bicarinata Forel Myrmicinae Pheidole californica Mayr Myrmicinae Pheidole ceres Wheeler Myrmicinae Pheidole coloradensis Emery Myrmicinae Pheidole desertorum Wheeler Myrmicinae Pheidole grundmanni M.R. Smith Myrmicinae Pheidole hyatti Emery Myrmicinae Pheidole inquilina Wheeler Myrmicinae Pheidole soritis Wheeler Myrmicinae Pogonomyrmex barbatus (Smith, F.) Myrmicinae Pogonomyrmex brevispinosus Cole Myrmicinae Pogonomyrmex californicus (Buckley) Myrmicinae Pogonomyrmex imberbiculus Wheeler Myrmicinae Pogonomyrmex maricopa Wheeler Myrmicinae Pogonomyrmex occidentalis (Cresson) Myrmicinae Pogonomyrmex rugosus Emery Myrmicinae Pogonomyrmex salinus Olsen Myrmicinae Pogonomyrmex subnitidus Emery Formicinae Polyergus breviceps Emery Ponerinae Ponera pennsylvanica Buckley Myrmicinae Solenopsis aurea Wheeler Myrmicinae Solenopsis molesta (Say) Myrmicinae Solenopsis salina Wheeler Myrmicinae Solenopsis xyloni McCook Myrmicinae Stenamma chiricahua Snelling Myrmicinae Stenamma diecki Emery Myrmicinae Stenamma huachucanum M.R.Smith Myrmicinae Stenamma smithi Cole Dolichoderinae Tapinoma UT01 Dolichoderinae Tapinoma UT02 Dolichoderinae Tapinoma sessile (Say) Myrmicinae Temnothorax andrei Emery Myrmicinae Temnothorax furunculus (Wheeler) Myrmicinae Temnothorax UT01 Myrmicinae Temnothorax nevadensis Wheeler Myrmicinae Temnothorax nitens (Emery) Myrmicinae Temnothorax rugatulus (Emery) Myrmicinae Temnothorax tricarinatus Emery Myrmicinae Tetramorium caespitum (Linnaeus)