Apantesis ursina

(Schmidt, 2009)

Apantesis ursina is a tiger moth in the Erebidae, described by Schmidt in 2009. The was originally placed in the Grammia but was transferred to Apantesis in a 2009 taxonomic revision that consolidated several related genera. It is to a restricted range in southern California and the Channel Islands, with likely extension into Baja California. fly in autumn, with peak activity from mid-September to early October.

Pronunciation

How to pronounce Apantesis ursina: /əˈpæn.ti.sɪs ˈɜr.sɪ.nə/

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Identification

Distinguished from other Apantesis by the combination of dark brown forewings with buff to yellowish-buff banding and pink to orange-pink hindwings with black pattern. The restricted geographic range in southern California and the Channel Islands helps separate it from related species. Forewing length differences between sexes are consistent but subtle.

Appearance

Forewings measure 15.3 mm in males and 16.7 mm in females. Ground color of forewings is dark brown with buff to yellowish-buff bands. Hindwings are pale pink to orange-pink with a black pattern. is present in forewing length.

Habitat

Specific preferences are not documented in available sources. Based on distribution, occupies coastal and near-coastal environments of southern California and offshore islands.

Distribution

to southern California: Channel Islands off the coast, and mainland from Kern County south to San Diego County. Probable occurrence in Baja California, Mexico, though not confirmed.

Seasonality

on wing primarily from mid-September to early October. Records exist from mid-August to early February, suggesting possible extended period or occasional late-season individuals. Probably one per year.

Life Cycle

Probably (one per year). Specific details of , larval, and pupal stages are not documented.

Behavior

, attracted to light. period coincides with autumn months.

Similar Taxa

  • Apantesis phalerataSimilar tiger moth in the same with overlapping western North American range; differs in wing pattern details
  • Grammia species (former)Originally classified in this ; other former Grammia now in Apantesis share similar and were part of same taxonomic revision

More Details

Taxonomic History

Originally described as Grammia ursina Schmidt, 2009. Transferred to Apantesis in 2009 when the Grammia, Holarctia, and Notarctia were synonymized with Apantesis based on phylogenetic analysis. This consolidation recognized Apantesis as the valid genus for these tiger moths.

Conservation Status

Restricted range in fragmented coastal California may make this vulnerable to habitat loss and climate change, though no formal assessment has been published.

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Sources and further reading