Berger's Clouded Yellow (Colias alfacariensis)
Species

Taken in the Vercors NP, France, on July 21st 2018.
(1/1880th sec at f14. Approx 2.5x lifesize. © David Hastings)

Description

Wing span: 54 - 63mm

This species closely resembles the Pale Clouded Yellow. The male has lemon-yellow underwings. The female has whitish forewing undersides with a yellow tip. The top surfaces are never seen at rest.

It is widespread and locally common across most of central Europe and the Mediterranean. It is recorded as a rare migrant in southern England.

Its habitats are calcareous grasslands and rocky slopes where the larval food plant grows.

There are two or three broods from May to October.

Larvae feed on Horseshoe Vetch and Crown Vetch.

This species is not believed to face major threats at the European level.

Sightings

25-Jul-2018 : Vercors Natural Park, France
24-Jul-2018 : Vercors Natural Park, France
21-Jul-2018 : Vercors Natural Park, France
20-Jul-2018 : Vercors Natural Park, France
19-Jul-2018 : Vercors Natural Park, France

09-Jun-2017 : Paklenica National Park, Croatia