Boloria napaea (Hoffmannsegg, 1804)


Boloria napaea: Female [N] Boloria napaea: Female [N] Boloria napaea: Female [N] Boloria napaea: Female [N] Boloria napaea: Female-upper side [N] Boloria napaea: Female [M] Boloria napaea: Adult kurz after the oviposition (W-Austrian Alps, Rätikon) [N] Boloria napaea: Adult in the oviposition habitat (W-Austrian Alps, Rätikon) [N] Boloria napaea: Male (Großglockner-Hochalpenstraße, Austria, 2009) [N] Boloria napaea: Male (Großglockner-Hochalpenstraße, Austria, 2009) [N] Boloria napaea: Courtship (Rätikon, W-Austrian Alps) [N] Boloria napaea: Lower side [N] Boloria napaea: Ovum (W-Austrian Alps, Rätikon) [M] Boloria napaea: Larva [S] Boloria napaea: Larva, fully-grown [S] Boloria napaea: Larva, prior to pupation [N] Boloria napaea: Pupa lateral [S] Boloria napaea: Pupa dorsal [S] Boloria napaea: Female pupa, lateral [S] Boloria napaea: Female pupa, dorsal [S] Boloria napaea: Habitat (place of larval observation) in Grisons at 2500m above sea level [N]

Host plants:
It seems that the larvae feed in the first place (if only?) on Polygonum species like Polygonum viviparum.

Habitat:
In Central Europe Boloria napaea occurs only in the Alps. There it can be found from 1700m above sea level in mostly damp pastures and wet to mesophilic forest gap systems, often more local than Boloria pales.

Life cycle:
The caterpillar overwinters in the first instar. In accepted only Polygonum in a breeding attempt. In the field, the larvae reach maturity in June. The moths fly particularly from July to early September.

Remarks:
The total distribution is Holarctic. In Europe, Boloria napaea occurs in the Pyrenees (very rare), the Alps and Scandinavia (boreo-alpine).



Boloria aquilonaris | Boloria dia | Boloria eunomia | Boloria euphrosyne | Boloria graeca | Boloria pales | Boloria selene | Boloria thore | Boloria titania