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The influence of climate on melanism in the Two‐Spot ladybird, Adalia bipunctata, in central Italy
Author(s) -
SCALI V.,
CREED E. R.
Publication year - 1975
Publication title -
transactions of the royal entomological society of london
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.865
H-Index - 81
eISSN - 1365-2311
pISSN - 0035-8894
DOI - 10.1111/j.1365-2311.1975.tb00564.x
Subject(s) - melanism , coccinellidae , zoology , biology , ecology , geography , predation , predator
SUMMARY1 The frequency of black forms of the Two‐Spot ladybird, Adalia bipunctata , progressively decreases with increasing altitude, inland from Viareggio and Pisa; it increases again, though not to the same extent, to the north east of the Apennines. 2 Probably temperature is an important selective agent, though air pollution may also have some effect.