Palinurus
The Living Force
In The Netherlands we've had a very warm winter which was detrimental if not disastrous for butterflies, and now we've had the coldest Whit Sunday in 80 years with only 12.1 Celsius:
http://www.dutchnews.nl/news/archives/2015/12/dutch-christmas-weather-is-warmest-on-record/
http://www.dutchnews.nl/news/archives/2016/03/86345-2/ [Snow in the south, but it has been a warm winter]
http://www.dutchnews.nl/news/archives/2016/05/swinging-temperatures-play-havoc-with-butterfly-population/
http://www.dutchnews.nl/news/archives/2016/05/whit-sunday-was-colder-than-christmas/
http://www.dutchnews.nl/news/archives/2015/12/dutch-christmas-weather-is-warmest-on-record/
http://www.dutchnews.nl/news/archives/2016/03/86345-2/ [Snow in the south, but it has been a warm winter]
http://www.dutchnews.nl/news/archives/2016/05/swinging-temperatures-play-havoc-with-butterfly-population/
http://www.dutchnews.nl/news/archives/2016/05/whit-sunday-was-colder-than-christmas/