Lotisma trigonana

(Walsingham, 1879)

Lotisma trigonana is a small in the Copromorphidae, ranging along the Pacific coast of North America from Alaska to Rica. have a wingspan of 14–22 mm. The has two recognized : the nominate form and L. t. durangoensis from Durango, Mexico. Larvae are known to feed on salal (Gaultheria shallon) and cranberry.

Lotisma trigonana by (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda. Used under a CC-BY license.

Pronunciation

How to pronounce Lotisma trigonana: /loʊˈtɪzmə trɪˈɡoʊnənə/

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Identification

Small size (14–22 mm wingspan) and Pacific coastal distribution may aid identification. Distinguishing features from other Copromorphidae are not documented. The L. t. durangoensis is restricted to Durango, Mexico.

Images

Appearance

Small with wingspan 14–22 mm. Specific wing pattern and coloration details are not documented in available sources.

Habitat

Coastal regions along the Pacific margin of North America. Specific requirements beyond coastal proximity are not documented.

Distribution

Pacific coast of North America from Alaska to Rica. The L. t. durangoensis occurs in Durango, Mexico.

Diet

Larvae feed on Gaultheria shallon (salal) and have been recorded on cranberry (Vaccinium ). feeding habits are not documented.

Host Associations

  • Gaultheria shallon - larval food plantPrimary recorded
  • cranberry - larval food plantVaccinium ; secondary recorded

More Details

Taxonomic history

Originally described as Sciaphila trigonana by Walsingham in 1879, later transferred to Lotisma.

Subspecies

Two recognized: Lotisma trigonana trigonana (nominate, widespread) and Lotisma trigonana durangoensis Heppner, 1986 (Mexico: Durango).

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Sources and further reading