Thursday, 17 August 2000

White-letter Hairstreak (Satyrium w-album)

OTHER NAMES: N/A
Latin Etymology: Satyrium (Satyr-like) w-album (for the "W" like marking on their hindwings)

Adult White-letter Hairstreak (Satyrium w-album) at Brigstock, Northants - June 2026

Featured Subspecies: ?
Length: ?  /  Wingspan: 36mm
NO UK STATUS IUCN Red List: Not Yet Evaluated 

A widely distrubted species ound across Eurasia from Western Europe to Japan, they are however a specialist of Elms which has left their habitat in the UK at least massively reduced due to the effects of Dutch Elm Disease. Colonies will often remain loyal to a single tree over many years, and are mostly seen high in the branches rather than near ground level.
 
Related Species: 
Order: Lepidoptera
Family: Lycaenidae
Genus: Satyrium
SUBSPECIES: S. w. fentoni, S. w. sutschani

 Sighting Locations - 

UNITED KINGDOM - A widespread but patchily distributed species
 - Seen at Brigstock, Northamptonshire 

Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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