Lotisma trigonana is a moth in the Copromorphidae family. It is found along the Pacific coast of North America, from Alaska to Costa Rica.

The wingspan is 14–22 mm.

The larvae feed on Gaultheria shallon, but have also been recorded feeding on cranberry.Bug Guide

Subspecies Lotisma trigonana trigonana Lotisma trigonana durangoensis Heppner, 1986 (Mexico: Durango)

References

Natural History Museum Lepidoptera generic names catalog