Read full entry

Plebejus idas

The Idas Blue or Northern Blue[1] (Plebejus idas) is a butterfly of the Lycaenidae family. It is found in the northern 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.


Lycaeides argyrognomon lotis (syn. Lycaeides idas lotis, formerly Plebejus argyrognomon [3]) is a critically endangered butterfly endemic to Mendocino County, California,[4] with sightings in Sonoma County and Marin County. It has been listed as an endangered species since June 1, 1976,[3] but has not been sighted in the wild since 1994.


  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
  3. ^ a b "Lotis Blue Butterfly", Xerxes society Profile
  4. ^ "Lotis Blue Butterfly", Arcata Fish and Wildlife Office


Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

Belongs to 0 communities

This taxon hasn't been featured in any communities yet.

Learn more about Communities


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!