Hoe gaat het met de Rode Lijst vlinders?

A short update is given on the situation regarding the Red List butterflies in the Netherlands. The species have been monitored each year and, whenever possible, given an index using the observations in 1990 as a reference. This gives an indication as to the increase or decrease of a species. So far, many Red List butterflies are still decreasing, which is alarming. A few species like the Niobe Fritlllary are showing signs of a steady increase.