IUCN threat status:

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Plebejus idas

The Idas Blue or Northern Blue[1] (Plebejus idas) is a butterfly of the Lycaenidae family. It is found in the northerern regions of the Palearctic ecozone and the Nearctic ecozone.[2]

Flies from June to August depending on location.

Wingspan: 17 to 28 mm.[1]

The larvae feed on Calluna and Fabaceae species.


  1. ^ a b Northern Blue, Butterflies of Canada
  2. ^ Jim P. Brock, Kenn Kaufman (2003) Kaufman Field Guide to Butterflies of North America. Boston: Houghton Mifflin. ISBN 0-618-15312-8


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