Aricia artaxerxes

 [BACK TO LIST]

NORTHERN BROWN ARGUS  Aricia artaxerxes

There is a well-established metapopulation on the Morecambe Bay limestone (SD47). There are no other records from anywhere in Lancashire or Cheshire. In north-west Derbyshire (VC57), a species of Aricia occurs, over which authorities are divided as to whether it should be considered to be A. artaxerxes or A. agestis; and one of these butterflies was recorded in 2008 in a garden in Mellor (SJ98), which although classified since 1974 as being in"greater Manchester" is actually in VC57.

Personally I cannot see any difference between the Derbyshire butterflies and those from north Lancashire, nor indeed between either of them and examples from southern England, and am unconvinced, despite all the literature on the subject, either that there are two distinct species in Britain or that the white-spotted "species" in Scotland is conspecific with what isclassified as A. artaxerxes (or allous) on the continent.

THE THREE PERIODS COMPARED

PERIOD 1 (1940-1994) WITH RECORDING COVERAGE, ALTITUDE AND URBAN COVER

PERIOD 2 (1995-2000) WITH RECORDING COVERAGE, ALTITUDE AND URBAN COVER

PERIOD 3 (2001-2007) WITH RECORDING COVERAGE, ALTITUDE AND URBAN COVER

 [BACK TO LIST]

 

Make a Free Website with Yola.