Dates of First Butterflies


Species 2002 2003 2004 2005 2006 2007 2008
February
Aglais urticae   9.4 13.3 16.3 18.3   6.4 13.3 11.2
April
Gonepteryx rhamni ? 28.3 17.3 30.4 22.4 12.3 20.4
Inachis io   1.4 14.4 31.3 21.5 25.4   1.4 27.4
Polygonia c-album ? 11.7   7.8   2.4 25.7 11.4 ?
Polyommatus icarus ?   1.6 19.6   8.6   7.5 15.4 ?
Celastrina argiolus ? ? ? ? 22.8 25.4 ?
May
Callophrys rubi ? 28.5 16.5 29.4 11.5   1.5 ?
Anthocharis cardamines ? 16.4 16.4 26.4   9.5 13.4   5.5
Pieris brassicae ? 16.6 28.6 21.6 15.5   9.6   5.5
Araschnia levana ?   3.5 29.5 30.4   9.5 13.4   8.5
Pieris napi   3.4 18.4 27.4 24.4 25.4   2.4 10.5
Pararge aegeria ? 14.4 16.5 ? 12.5 14.4 12.5
Lycaena helle ? 15.4 15.5   1.5 10.5 28.4 12.5
Papilio machaon ? ? ? ? ? 15.5 ?
Lycaena tityrus ? ? 24.5 ? ? ? ?
June
Boloria eunomia ?   1.6   6.6 10.6 13.6 25.5   1.6
Pyrgus malvae ?   4.5 11.5 30.4 11.5   1.5   3.6
Boloria selene ? 26.5 26.5 27.5   8.6 18.5   3.6
Ochlodes sylvanus ? 30.5 31.5   8.6 16.6   5.6   3.6
Vanessa cardui ?   4.5 15.6   6.8 11.5   3.6 ?
Coenonympha pamphilus ?   8.5 28.5 25.5 10.6   6.6   4.6
Melitaea athalia ?   4.6 ? ? ? ? ?
Melitaea cinxia ?   4.6 ? ? ? ? ?
Aporia crataegi ?   3.6   7.6   8.6 16.6 25.5 11.6
Lycaena hippothoe ?   3.6 11.6 ? ? ? ?
Polyommatus semiargus ?   4.6 ? ? 12.6 ? ?
Aphantopus hyperantus ? 11.6 17.6 19.6 22.6   8.6 17.6
Thymelicus sylvestris ? 17.6 16.6 28.6 29.6 19.6 19.6
Boloria aquilonaris 23.6   7.6 28.6 18.6 24.6   5.6 20.6
Vanessa atalanta ?   3.5 15.6 21.5 24.4 13.3 22.6
Apatura iris ? ? 28.7 ? 13.7   1.7 26.6
Maniola jurtina ? 17.6 26.6   3.7 24.6   8.6 29.6
July
Pieris rapae ? 28.5 11.5 10.5 14.5 16.4   2.7
Thymelicus lineola ?   6.7 16.7   9.7   6.7 27.6 13.7
Araschnia levana (2nd Gen) ?   7.7   6.8   4.8 15.7 30.6 24.7
Lycaena phlaeas ? 15.8 23.5   9.6 12.5 21.4 30.7
Issoria lathonia ? 13.8 17.8 ? 31.7 ?
August
Lasiommata megera ?   6.8 29.5 27.5 ?   1.8 19.8
Colias croceus ?   2.8 18.9 28.8 25.7 24.8 ?

With help from Bruno Ghysenberghs, Jean-Marc Remacle, Raphaël Thunus.


Translations

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