This is a scarce large blue butterfly video from the Netherlands.
On 23 July 2015, there will be a celebration in the Moerputten nature reserve near Den Bosch city in Noord-Brabant province in the Netherlands. Then, it will be 25 years ago that scarce large blue butterflies, which had become extinct in the Netherlands, were reintroduced there.
Then, in 1990, 74 butterflies were freed. Meanwhile, there are hundreds. There are plans to introduce them to other nature reserves as well, as a species, limited to one area, is vulnerable to disasters.
In the Moerputten, the caterpillars are dependent, first on great burnet plants. Then, on Myrmica scabrinodis ants, when the caterpillars live as parasites in the anthills. They are also, indirectly, dependent on springtails: these are the main food of the ants.