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a. Latitude band 08-39
b. Latitude band 16-37
c. Latitude band 24-45
d. Latitude band 12-63
e. Latitude band 00-61
as
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Figure 10. Latitudinal variation in flight period of Pyrrhosoma nymphula. Britain has been divided into five bands, each 200 km wide.
The naming refers to the Ordnance Survey 100 km square numbers. Band a is the northern part of Scotland. Band e covers southern
England and south Wales
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