Celastrina

Celastrina is a genus of butterflies in the family Lycaenidae found in the Palearctic, Nearctic, Indomalayan and Australasian realms.

Species
Listed alphabetically:
 * Celastrina acesina (Bethune-Baker, 1906) – south-eastern Papua New Guinea
 * Celastrina albocoeruleus (Moore, 1879) – albocerulean
 * Celastrina algernoni (Fruhstorfer, 1917) – Philippines (Luzon) and Borneo
 * Celastrina argiolus (Linnaeus, 1758) – holly blue
 * Celastrina asheri (Labar, Pelham & Kondla, 2022) ) – Asher's blue
 * Celastrina cardia (Felder, 1860) – pale hedge blue
 * Celastrina dipora (Moore 1865) – dusky blue Cupid
 * Celastrina echo (Edwards, 1864) – echo azure – California, Oregon
 * Celastrina fedoseevi Korshunov & Ivonin, 1990 – Transbaikalia, Amur Oblast
 * Celastrina filipjevi (Riley, 1934) – Ussuri, northeast China, Korea
 * Celastrina gigas (Hemming, 1928) – western Himalayas, Fujian
 * Celastrina gozora (Boisduval, 1870) – Mexican azure
 * Celastrina hersilia (Leech, [1893]) – Nepal to China
 * Celastrina huegeli (Moore, 1882) – large hedge blue
 * Celastrina humulus Scott & Wright, 1998 – hops azure – Colorado
 * Celastrina idella Wright & Pavulaan, 1999 – holly azure
 * Celastrina iynteana (De Nicéville, 1883) – Jyntea hedge blue
 * Celastrina ladon (Cramer, [1780]) – spring azure
 * Celastrina ladonides (De L'Orza, 1869) – silvery hedge blue
 * Celastrina lavendularis (Moore, 1877) – plain hedge blue
 * Celastrina lucia (Kirby, 1837) – Lucia azure or boreal spring azure
 * Celastrina morsheadi (Evans, 1915) – Tibet
 * Celastrina neglecta (Edwards, 1862) – summer azure
 * Celastrina neglectamajor Opler & Krizek, 1984 – Appalachian azure
 * Celastrina nigra (Forbes, 1960) – spring sooty, dusky azure, or sooty azure – eastern United States
 * Celastrina ogasawaraensis (Pryer, 1886) – Japan
 * Celastrina oreas (Leech, [1893]) – Ussuri, China, (including Tibet and Taiwan), Nepal, northeast India (Assam), Burma, Korea
 * Celastrina perplexa Eliot & Kawazoé, 1983 – China (Kangding)
 * Celastrina phellodendroni Omelko, 1987 – Ussuri
 * Celastrina philippina (Semper, 1889) – Borneo, Palawan, Philippines, Talaud, Moluccas, West Irian, Papua New Guinea, Bachan, Halmahera, Ternate, Timor, Sulawesi, Sula Islands, Ambon Island, Serang, Obi Islands
 * Celastrina serotina Pavulaan & Wright, 2005 – cherry gall azure
 * Celastrina sugitanii (Matsumura, 1919) – Japan, Sakhalin, Korea, northeast China