-Animals (Kingdom Animalia)

-Arthropods (Phylum Arthropoda)

-Hexapods (Subphylum Hexapoda)

-Insects (Class Insecta)

-Winged and Once-winged Insects (Subclass Pterygota)

-Butterflies and Moths (Order Lepidoptera)

-Butterflies (Superfamily Papilionoidea)

-Gossamer-winged Butterflies (Family Lycaenidae)

-Blues (Subfamily Polyommatinae)

-Typical Blues (Tribe Polyommatini)

-Subtribe Everina

-Tailed-Blues (Genus Cupido)

-Eastern Tailed-Blue (Cupido comyntas)

-Cupido comyntas ssp. texana

The eastern tailed-blue or eastern tailed blue (Cupido comyntas), also known as Everes comyntas, is a common butterfly of eastern North America. It is a small butterfly that is distinguished from other blues in its range by the small thin tail. Eastern tailed-blue larvae feed on various legumes and are known to secrete a substance which is favored by some ant species. The ant in turn protects the larva of the butterfly from other predators.