Argynnis paphia

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SILVER-WASHED FRITILLARY Argynnis paphia

The odd records in Cheshire and mid-Lancashire during the first two periods are unexplained. It is noted that the first period does not show any records from around Morecame Bay (SD47); but in the second and third periods the butterfly has strted to coonise the limestone woodlands in that vicinity. Further west at Roudsea in the Furness, therefore historically in Lancashire, but not included in the mapping in this project as it comes under VC69 (Westmorland and North Lancashire) A. paphia has established a very stronghold in the national nature reserve woodland, and all but displaced A. adippe and A. aglaja there.

The isolated records in VC58 and VC59, shown on the map for the third period, are believed to have been wanderers from the southern Lake district, in view of the abundance at Roudsea at the time. They may seem very long distances to have strayed, but there is no known nearer colony. The fact that butterflies were seen at virtually the same timeat such widely separated sites as Norden and Middlewood, to my mind rules out the possibility that the sightings were due to the release of captive-bred specimens. The butterfly is large and powerful and quite capable of flying long distances, which it mus thave done to colonise Roudsea in the 1990s in the first place.

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

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