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Plebeius idas (Linnaeus, 1761)   

Name in Tolman & Lewington (1997): Plebejus idas

Systematics: In older Bulgarian sources listed as "argyrognomon". It has since been established that these are two distinct species.

Range: Eurasia. In the mountains of the Balkan Peninsula, Turkey and Great Caucasus represented by the subspecies baldur (Hemming, 1934) which, considering the males' stable external differences from nominotypical idas and especially this taxon's recently reported strict monophagy in Bulgaria (see below), may be a separate species (Kolev 2005a).

Distribution in Bulgaria: The mountains of S and SW Bulgaria up to ca. 2000 m a.s.l.

Habitat: Various open and semi-open places with the larval host-plant.

Bionomics: One generation from June till August. In Bulgaria the larval host plant is the Balkan endemic Chamaecytisus absinthioides (Fabaceae) (Kolev 2005a).

Conservation status: Local and with limited distribution in Bulgaria, but not directly threatened. IUCN category: Lower risk, near threatened.

 


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