Pyrgus cacaliae

Dusky Grizzled Skipper

euroButterflies

by Matt Rowlings

copyright © 2003-2016

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Photo: cacaliae

Valais, Switzerland, July 2011

Photo: cacaliae

Valais, Switzerland, July 2011

Field notes and information

One of two very similar species. This species is confined to the Alps and the Balkan mountains.

Identification & Similar species: The alpine grizzled and the dusky grizzled skippers, P. andromedae & P. cacaliae, can be separated from other similar species by: few upperside hindwing markings and dirty dark green underside hindwings which give the butterflies a rather dull overall feel. Space 1b of the underside hindwing has a white exclamation mark (!) which is missing in most other similar species.

Two main differences between these two species are as follows:

P. andromedae: brighter upper forewing markings with 3 spots in the discal area in spaces 1b, 2 and 3. Basal spots present on the underside hindwing.

P. cacaliae: usually very small upper forewing markings and maximum of 2 spots (sometimes none) in the discal area in spaces 1b and 2. The middle basal spot is absent on the underside hindwing

Distribution & Flight: This species is confined to the Alps and a couple of mountains in the Balkans. It flies at alpine levels. Single brooded in July and August.

Habitat & Behaviour: Grassy alpine meadows with flowers. I associate it with damper locations such as stream edges, bogs etc but this could be a function of it's tendancy to be found taking salts from the ground.

Photo: cacaliae

Valais, Switzerland, July 2006

Photo: cacaliae

Grisons, Switzerland, July 2013

Photo: cacaliae

Tessin, Switzerland, August 2013

Photo: cacaliae

Valais, Switzerland, July 2011

Photo: cacaliae

Grisons, Switzerland, July 2013

Photo: cacaliae

Rila Mts, Bulgaria, July 2004

Photo: cacaliae

Valais, Switzerland, July, 2007

Photo: cacaliaePhoto: cacaliaePhoto: cacaliae

Valais, Switzerland, June 2007

Photo: cacaliae

Valais, Switzerland, July 2006

Photo: cacaliaePhoto: cacaliae

Valais, Switzerland, June 2007

Photo: cacaliae

Valais, Switzerland, July, 2007

Photo: cacaliae

Valais, Switzerland, July, 2007