Erebia christi

Erebia christi

Languages: English


Brief Summary

Rätzer's Ringlet is a satyrine butterfly discovered in 1882 by Swiss minister August Rätzer in the Laquinthal in the Simplon of Southern Switzerland (Schulz 1892, Rätzer 1893).  Endemic to a small area in the subalpine region of the Swiss and Italian alps, this is one of Europe's rarest butterflies (Leigheb et al. 1998, Sonderegger 1996, van Swaay et al 2012). Due to its restricted range, the species was listed in Appendix II of the Bern Convention (Council of Europe 1979).

The larvae of Erebia christi feed on Sheep Fescue (Festuca ovina), a densely tufted perennial grass. Like other alpine Erebias exposed to low average temperatures and a short growing season, Erebia christi caterpillars need two years to complete development, i.e., two winters are spent in the larval stage (Sonderegger 1996).

Author(s): Schulz, Katja
Rights holder(s): Schulz, Katja


[Anonymous] (1979).  Convention on the Conservation of European Wildlife and Natural Habitats.
Leigheb, G., Cameron-Curry V., Riboni E., & Cecchin S. (1998).  Present knowledge on the distribution of Erebia christi (Nymphalidae: Satyrinae) in the Italian Alps. Nota lepidopterologica . 21, 290-295.
Lepidopterologen-Arbeitsgruppe (1987).  Tagfalter und ihre Lebensräume: Arten, Gefährdung, Schutz. 516 pp. . Basel: Schweizerischer Bund für Naturschutz.
Rätzer, A. (1893).  Lepidopterologische Nachlese. Bulletin de la Société entomologique suisse. 8, 220-229.
Schulz, G. (1892).  Erebia Christi Rätzer. Stettiner entomologische Zeitung. 52, 359-364.
Sonderegger, P. (1996).  Erebia christi Rätzer, 1890. (van HelsdingenP J., WillemseL., SpeightM C D., Ed.).Background Information on Invertebrates of the Habitats Directive and the Bern Convention. 140-143. Strasbourg: Council of Europe Publishing.
van Swaay, C., & Warren M. (1999).  Red Data Book of European Butterflies (Rhopalocera). Council of Europe Nature Environment Series. Strasbourg: Council of Europe Publishing.
van Swaay, C., Collins S., Dušej G., Maes D., Munguira M L., Rakosy L., et al. (2012).  Dos and Don’ts for butterflies of the Habitats Directive of the European Union. Nature Conservation. 1, 73.
van Swaay, C., Maes D., Collins S., Munguira M. L., Šašić M., Settele J., et al. (2011).  Applying IUCN criteria to invertebrates: How red is the Red List of European butterflies?. Biological Conservation. 144(1), 470 - 478.
Warren, BCS. (1936).  Monograph of the Genus Erebia. London: Oxford University Press.