%0 Journal Article %K Lepidoptera %K Non-native species %K parasitism %K Tachinidae %K U.K. Butterfly monitoring scheme %B Ecological Entomology %D 2011 %G en %N 3 %P 271-281 %T A novel parasitoid and a declining butterfly: cause or coincidence? %U http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2311.2011.01269.x/abstract %V 36 %8 2011 %@ 1365-2311 %! A novel parasitoid and a declining butterfly