genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
butterflies
Butterflies are winged insects from the lepidopteran superfamily Papilionoidea, characterized by large, often brightly coloured wings that often fold together when at rest, and a conspicuous, fluttering flight. The oldest butterfly fossi ...
in the family
Lycaenidae
Lycaenidae is the second-largest family (biology), family of butterflies (behind Nymphalidae, brush-footed butterflies), with over 6,000 species worldwide, whose members are also called gossamer-winged butterflies. They constitute about 30% of ...
erected by
Hamilton Herbert Druce
Hamilton Herbert Charles James Druce (26 October 1866 – 21 June 1922) was an English entomologist who specialised in Lycaenidae and to a lesser extent Hesperiidae. He is not to be confused with his father, the English entomologist Herbert Dr ...
in 1895. Its species are found in Asia and in
Oceania
Oceania ( , ) is a region, geographical region including Australasia, Melanesia, Micronesia, and Polynesia. Outside of the English-speaking world, Oceania is generally considered a continent, while Mainland Australia is regarded as its co ...
831
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Year 831 (Roman numerals, DCCCXXXI) was a common year starting on Sunday of the Julian calendar.
Events
By place Abbasid Empire and Byzantine Empire
* Byzantine–Arab wars (780–1180)#Period of 780–842, Byzantine–Arab W ...
New Guinea, Bismarck Archipelago, Solomon Islands, Aru, Timor, Wetar
* '' Luthrodes contracta'' (Butler, 1880) – small Cupid
* '' Luthrodes ella'' (Butler, 1881) South Central Asia
* '' Luthrodes galba'' (Lederer, 1855) – Persian grass blue
* '' Luthrodes mindora'' (C. Felder & R. Felder,
865
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Year 865 ( DCCCLXV) was a common year starting on Monday of the Julian calendar.
Events
By place Europe
* King Louis the German divides the East Frankish Kingdom among his three sons. Carloman receives Bavaria (with more l ...
829
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Year 829 ( DCCCXXIX) was a common year starting on Friday of the Julian calendar.
Events
By place
Byzantine Empire
* October 2 – Emperor Michael II dies after an 8-year reign in Constantinople, and is succeeded by his ...