Acrodipsas arcana, the black-veined ant-blue or arcana ant-blue, is a butterfly of the family Lycaenidae. It is found inland on hills in southern Queensland and northern New South Wales in Australia.

Acrodipsas arcana
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Lycaenidae
Genus: Acrodipsas
Species:
A. arcana
Binomial name
Acrodipsas arcana
Miller & Edwards, 1978
Synonyms
  • Pseudodipsas arcana

Adults have a wingspan of about 20 mm. They are brown on top, with iridescent blue patches. The underside is brown, with dark white-edged arcs. Each hindwing has a pair of black spots on both the over- and underside.

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