In California robinsonana adults have three basic phenotypes: 1) forewing uniform brown; 2) forewing with a white basal area and brown outer area; 3) forewing dark blue-gray with a yellow dorsal margin. Males lack a forewing costal fold.
Related or similar species
Acleris robinsonana may appear similar to other species of Acleris due to its highly variable forewing pattern.
This species completes one or two generations per year. Adults are present in May or June.
Larvae fold or tie newly developing leaves and feed on the upper surface. Later instars fold leaves and eat the apical half. Individuals overwinter as adults.
California wildrose (Rosa californica)
Area of origin
Northeastern United States
Northeastern United States across southern Canada to British Columbia and south to California
Current valid name
Acleris robinsoniana (Forbes)
- Robinson's acleris moth
- Peronea clemensiana
- Peronea robinsoniana
Powell, J. A. 1964. Biological and taxonomic studies on tortricine moths, with reference to the species in California. University of California Publications in Entomology. Vol. 32. 317 pp.