(Denis and Schiffermüller, 1775)
Cynthia's Fritillary
Description:
Cynthia's Fritillary distinguishes itself from other fritillaries by the large amount of white on the basal parts of the upperside of the wings of the male. The butterflies occur on sub-alpine and alpine grassland with short, grassy vegetation and low-growing shrubs and in rocky areas. They fly quickly, close to the ground, and are fond of basking in the sun on rocks or bare patches of ground.
The female lays her eggs in clusters under leaves of Alpine Plantain (Plantago alpina) and Long-spurred Pansy (Viola calcarata). The caterpillars are black and bristly with yellow bands between each segment. They can be very numerous and take two years to develop. The first hibernation takes place communally in a silken web. In the fourth larval instar, they hibernate a second time, solitarily under stones, where they later pupate.
Habitat:
Alpine grasslands
Similar species:
Euphydryas intermedia
Euphydryas maturna