Agriades orbitulus

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Agriades orbitulus
Plebejus orbitulus 250706.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Lycaenidae
Genus: Agriades
Species:
A. orbitulus
Binomial name
Agriades orbitulus
(Prunner, 1798)
Synonyms
  • Papilio orbitulusde Prunner, 1798
  • Albulina orbitulus
  • Plebejus orbitulus
  • Plebeius orbitulus
  • Papilio pheretesHübner, 1805
  • Albulina pheretes

Agriades orbitulus, the alpine argus, is a butterfly of the family Lycaenidae. It is a high altitude species found in the Alps (ranging from the French Alps to Slovenia and Austria), the mountains of Norway and Sweden, the Urals, the Himalayas and across central Asia.

Contents

Mounted Plebeius orbitulus.male.jpg
Mounted
Underside Plebeius orbitulus.underside.jpg
Underside

Description

The wingspan is 25–30 mm. The male upperside varies from sky blue to a greyish or steely blue, and is unmarked apart from the narrow black borders and white fringes. The female is brown, often with a slight blue dust suffusion at the wing bases. The fore-wings end in a very pointed apex. Both sexes are clearly assigned by conspicuous white spots on the otherwise pale greyish brown or beige wing underside. The spots under the hind-wing are pure white and lack black centres. The butterfly flies from June to August depending on the location.

Ecology

The larvae feed on several species of Astragalus ( A. alpinus , A. australis , A. frigidus , A. norvegicus and A. penduliflorus ), two species of Oxytropis ( O. campestris and O. montana ) and on Hedysarum hedysaroides . [1]

Subspecies

Subspecies include: [2]

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References

  1. Clarke, Harry E. (14 April 2022). "A provisional checklist of European butterfly larval foodplants". Nota Lepidopterologica. 45. Supplementary material: spreadsheet. doi: 10.3897/nl.45.72017 . Retrieved 22 September 2022.
  2. Savela, Markku. "Agriades orbitulus". Lepidoptera and Some Other Life Forms. Retrieved August 9, 2019.