---
title: "Eastern Tailed-Blue"
description: "Everes comyntas — Insects & spiders. The eastern tailed-blue or eastern tailed blue (Cupido comyntas), also known as Everes comyntas, is a common butterfly of eastern North America."
canonical: https://animalchecklist.com/animal/eastern-tailed-blue
last_updated: 2026-09-20
---

# Eastern Tailed-Blue

> Everes comyntas — Insects & spiders. The eastern tailed-blue or eastern tailed blue (Cupido comyntas), also known as Everes comyntas, is a common butterfly of eastern North America.

- Scientific name: *Everes comyntas*
- Category: `insects` (Insects & spiders)
- Habitats: unknown
- iNaturalist observations: 70910
- iNaturalist taxon: [58555](https://www.inaturalist.org/taxa/58555)

## Names

- en: Eastern Tailed-Blue
- es: Mariposa azul con cola
- fr: Bleu porte-queue de l'Est

## Countries with the most observations

US (58177), CA (5839), MX (1163), CR (153), HN (108), CO (104), BZ (81), PA (69), GT (36), EC (35), NI (31), SV (12)

## Summary

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.

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Eastern_tailed-blue

## Photo

![Eastern Tailed-Blue](https://animalchecklist.com/img/animals/eastern-tailed-blue/medium.jpg)

Photo: Kirill Levchenko · CC0 · inaturalist — https://www.inaturalist.org/observations/237761127

## Machine access

`GET https://animalchecklist.com/api/v1/animals/eastern-tailed-blue?lang=en` — see [openapi.json](https://animalchecklist.com/openapi.json).