van Swaay, C., Wynhoff, I., Verovnik, R., Wiemers, M., López Munguira, M., Maes, D., Sasic, M., Verstrael, T., Warren, M. & Settele, J.
Lewis, O. (Butterfly RLA) & Cuttelod, A. (IUCN Red List Unit)
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Although this species occurs in a small extent of occurrence (EOO) and AOO, it is not declining by more than 30% nor shows extreme fluctuations according to Russell et al. (2007). Therefore it is listed as Least Concern.
Restricted to Sao Miguel, in the Azores. Its elevational range is 600-1,000 m. This is a European endemic species.
A local species, restricted to (semi-) natural areas. Declines in distribution or population size of 6-30% have been reported (data provided by the national partners of Butterfly Conservation Europe).
Le Cerf's Grayling can be found in on grassy vegetation in small valleys and sheltered hollows. The butterflies are often observed on flowers where they come for nectar. Probably, the only foodplant is Festuca jubata. The species has one generation a year (Tolman and Lewington 2008). Habitats: mesophile grasslands (33%), agricultural land and artificial landscapes (33%), heath and scrub (33%).
Although this is a European endemic with a restricted range, this species is not believed to face major threats at the European level.
No specific conservation actions are needed at a European level. But since it has a restricted global range, its distribution and trend should be monitored closely, for example by a Butterfly Monitoring Scheme