Bats of Colorado

Key to bats of Colorado (version 2. Schorr and Navo 2014). This revised key includes diagrams and pictures to aid in species identification in Colorado. Please review and let us know if this key matches dichotomies that you have used.

Western small-footed myotis (Myotis ciliolabrum) Picture.
Yuma myotis (Myotis yumanensis) Picture.
Hoary bat (Lasiurus cinereus) Picture.
Family Common Name Scientific Name
MolossidaeBig free-tailed batNyctinomops macrotis
MolossidaeBrazilian free-tailed batTadarida brasiliensis
VespertilionidaeAllen's big-eared batIdionycteris phyllotis
VespertilionidaeBig brown batEptesicus fuscus
VespertilionidaeCalifornia myotisMyotis californicus
VespertilionidaeCanyon bat (formerly western pipistrelle)Parastrellus hesperus
VespertilionidaeFringed myotisMyotis thysanodes
VespertilionidaeHoary batLasiurus cinereus
VespertilionidaeLittle brown batMyotis lucifugus
VespertilionidaeLong-eared myotisMyotis evotis
VespertilionidaeLong-legged myotisMyotis volans
VespertilionidaePallid batAntrozous pallidus
VespertilionidaeRed batLasiurus borealis
VespertilionidaeSilver-haired batLasionycteris noctivagans
VespertilionidaeSpotted batEuderma maculatum
VespertilionidaeTownsend\'s big-eared batCorynorhinus townsendii
VespertilionidaeTri-colored bat (formerly eastern pipistrelle)Perimyotis subflavus
VespertilionidaeWestern small-footed myotisMyotis ciliolabrum
VespertilionidaeYuma myotisMyotis yumanensis
Siemers_Skull_bat_cluster_species-1