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The list comprises butterfly species listed in The Moths and Butterflies of Great Britain and Ireland by Emmet et al. [1] and Britain's Butterflies by Tomlinson and Still. [2] A study by NERC in 2004 found there has been a species decline of 71% of butterfly species between 1983 and 2003. [3]
Fabriciana adippe, the high brown fritillary, is a large and brightly colored butterfly of the family Nymphalidae, native to Europe and across the Palearctic to Japan. It is known for being Great Britain's most threatened butterfly and is listed as a vulnerable species under the Wildlife and Countryside Act 1981. [2]
It has bright blue wings rimmed in black with white edges and silver spots on its hindwings, lending it the name of the silver-studded blue. P. argus can be found across Europe and east across the Palearctic , but it is most often studied in the United Kingdom where the species has experienced a severe decline in population due to habitat loss ...
Species listed in the 2007 UK Biodiversity Action Plan (BAP) [2] are indicated by a double-dagger symbol (‡)—species so listed for research purposes only are also indicated with an asterisk (‡*).
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The large blue (Phengaris arion) is a species of butterfly in the family Lycaenidae.The species was first defined in 1758 and first recorded in Britain in 1795. [2] In 1979 the species became mostly extinct in Britain but has been successfully reintroduced with new conservation methods. [3]
Many species are brightly coloured and include popular species such as the emperors, monarch butterfly, admirals, tortoiseshells, and fritillaries. However, the under wings are, in contrast, often dull and in some species look remarkably like dead leaves, or are much paler, producing a cryptic effect that helps the butterflies blend into their ...
The undersides are a bright green with a thin white line, often reduced to a faint row of dots or even missing altogether. The iridescent green colour of the undersides is a structural colour caused by diffraction and interference of light by microscopic repeating structures forming a diffraction grating in the wing scales. [4]