Colias caucasica

Balkan Clouded Yellow

euroButterflies

by Matt Rowlings

copyright © 2003-2016

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Photo: caucasica

SW Serbia, June 2012

Photo: caucasica

SW Serbia, June 2012

Field notes and information

A very local species of the Balkans.

Identification & Similar species: Very similar to the other clouded yellows, Colias. In the region, a rich orange upperside colouration helps separate it from the clouded yellow C. croceus which is lighter yellow-orange. The Greek clouded yellow C. aurorina has strong violet tones and the underside is much greener.

Distribution & Flight: Very local in Bosnia, Serbia, FYROM, N Greece and Bulgaria. It is a species of limestone mountains flying at mid to high altitudes (1200-2200m).

Single brooded flying in June and July, and into August at higher levels.

Habitat & Behaviour: A strong flier that pauses to nectar briefly. It inhabits rocky mountain grassland with abundant flowers on limestone. Larvae feed on broom species such as the Chamaecytisus shown below.

Photo: caucasica

SW Serbia, June 2012

Photo: caucasica

SW Serbia, June 2012

Larval food plant, a low growing broom Chamaecytisus sp.

Photo: caucasica

SW Serbia, June 2012

Photo: caucasicaPhoto: caucasicaPhoto: caucasica

SW Serbia, June 2012

Photo: caucasicaPhoto: caucasica

SW Serbia, June 2012