''Satyrium latior'' is a

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises ...

of the subfamily

Lycaeninae Lycaeninae, the coppers, are a subfamily of the gossamer-winged butterflies (Lycaenidae). The relationships of the Lycaenidae are not fully resolved. Sometimes the Polyommatinae and Theclinae are included in the Lycaeninae; in particular the The ...

. It was described by

Johann Heinrich Fixsen Johann Heinrich Fixsen (19 October 1825 in St. Petersburg – 4 September 1899 in Hamburg) was a German entomologist who specialized in the Lepidoptera of the Palaearctic Region The Palearctic or Palaearctic is the largest of the eight bioge ...

in 1887. It is found in the

Russian Far East The Russian Far East (russian: Дальний Восток России, r=Dal'niy Vostok Rossii, p=ˈdalʲnʲɪj vɐˈstok rɐˈsʲiɪ) is a region in Northeast Asia. It is the easternmost part of Russia and the Asian continent; and is admin ...

(Transbaikalia, Amur, Ussuri), northern China and

Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republi ...

. The larvae feed on ''

Rhamnus davurica ''Rhamnus davurica'' is a species of flowering plant in the buckthorn family known by the common name Dahurian buckthorn. It is native to China, Korea, Mongolia, eastern Siberia, and Japan. It is present in North America as an introduced species. ...

'', ''

Rhamnus ussuriensis Rhamnus may refer to: * Rhamnus (city), or Rhamnous, an ancient Greek city in Attica * Rhamnus (Crete), or Rhamnous, an ancient Greek town in Crete * Rhamnus, an augur killed by Nisus and Euryalus in book IX of The Aeneid The ''Aeneid'' ( ; ...

'' and '' Armeniaca sibirica''.

Description from Seitz

latior Fixs. (72 h) is one-third larger spini''">Satyrium_spini.html" ;"title="han ''Satyrium spini">spini'' with the colour darker and more intense, the scaling being so dense that the scent-patch of the male is hardly visible; from the Amur, Corea, and North China.Seitz, A. ed. Band 1: Abt. 1, ''Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen Tagfalter'', 1909, 379 Seiten, mit 89 kolorierten Tafeln (3470 Figuren)

References

"''Satyrium latior'' (Fixsen, 1887)"
''Insecta.pro''. Retrieved February 6, 2020. Butterflies described in 1887 Satyrium (butterfly) Butterflies of Asia {{Eumaeini-stub