Ireland, Germany - critically endangered (vom Aussterben bedroht), Netherlands, Poland, Slovakia - critically enangered, Latvia and Croatia - in the Krka National Park. First finding of this species in Croatia was in 2009.
Germany, Ireland, along with the Netherlands, Poland, Slovakia, and Latvia and Croatia are all considered critically endangered (at risk of extinction). The first discovery of this species took place in Croatia within Krka National Park in 2009.