Large butterfly populations, seemingly not at risk of extinction, can decline rapidly due to alteration of their habitat. This appears to be the case of the butterfly Chazara briseis, (The Hermit) which is declining in all of Central and Eastern Europe, even from apparently large areas of its steppe grassland habitats. 
  They are a light colored butterfly with extensive brown spots.
  The underside of the wings is gray brown, with darker brown markings. 
    They are typically found on steppes and in other dry grassy places between 500 and 2,500 meters.
   They prefer very hot, dry, stony places with sparse shrubs or light woodland.
They will find shade where possible in the fierce mid day heat. 
    They fly from July to September depending on the location.
   They have the ability to vary their body temperature to accelerate muscle function, enabling surprisingly agile maneuvers for a seemingly delicate creature.
   * As members of the Brush Footed (Nymphalidae) family, they use their pair of shorter front legs for food tasting, and their two pairs of longer rear legs for propulsion.