Speyeria callippe rupestris

(Behr, 1863)

Speyeria callippe rupestris is a of fritillary in the Nymphalidae. It belongs to the callippe group of fritillaries, a complex of closely related distributed across western North America. The subspecies epithet "rupestris" refers to rocky . Like other Speyeria , larvae feed on violet species (Viola).

Pronunciation

How to pronounce Speyeria callippe rupestris: /ˈspaɪəriə kəˈlɪpi ruˈpɛstrɪs/

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Identification

Distinguished from other S. callippe by geographic distribution and subtle wing pattern variations. The callippe group fritillaries typically show orange-brown upper wing surfaces with black markings and silver spots on the hindwing. Specific diagnostic features for S. c. rupestris require comparison with and adjacent subspecies .

Habitat

Rocky as indicated by the name; associated with montane and foothill environments in the western interior of North America where larval violets occur.

Distribution

North America: recorded from Alberta, Manitoba, and Saskatchewan in Canada. The occupies the northern and interior portion of the S. callippe range, distinct from coastal subspecies.

Diet

Larvae feed on Viola (violets). nectar on various flowering plants.

Host Associations

  • Viola - larval food plantRequired for larval development; females oviposit near violet plants

Ecological Role

serve as . Larvae are herbivores on violets.

Similar Taxa

  • Speyeria callippe callippeNominate ; geographically separated, typically occurring further south and west
  • Speyeria cybeleSimilar orange and black fritillary pattern; distinguished by size, wing shape, and spotting pattern
  • Speyeria zereneRelated fritillary with overlapping range; requires examination of genitalia and wing pattern details for separation

More Details

Taxonomic Note

The S. callippe complex includes multiple with overlapping and intergrading characteristics. Some authorities have considered certain subspecies as distinct . Precise boundaries between subspecies remain subject to ongoing taxonomic study.

Conservation Status

Not evaluated separately from the ; the species Speyeria callippe is not currently listed as threatened, though loss affects many western fritillary .

Sources and further reading