Synonyms and other taxonomic changes
Acleris holmiana (Linnaeus, 1758)
Phalaena (Tortrix) holmiana
Linnaeus, 1758 (1)
Explanation of Names
Specific epithet for the capital of Sweden (Holmia), now Stockholm. (2)
Forewing length 5.5-8.0 mm. (3)
Larva length to 10 mm.
Adult - forewing golden orangish-yellow mixed with dark reddish-brown; large triangular or rectangular white patch mid-way along costa is diagnostic; hindwing dark gray.
Larva - head variably yellowish to light brown or reddish-brown, region of stemmata and posterior margin blackish; prothoracic plate black or dark brown with black posterior and lateral margins; abdomen variably bright yellow to pale green, integument weakly shagreened, pinacula concolorous; anal comb present; thoracic legs brown.
Native to Europe and Asia Minor, first reported in North America in 1977 in British Columbia; first United States report in 1994 in Washington State; spread south to Oregon by 2003. (3)
Larvae feed on leaves of apple, cherry, hawthorn, pear, raspberry, Cotoneaster
, and Cydonia
. See list of hosts at TortAI. (3)
One generation per year; female deposits eggs on bark of shoots and small branches of hostplants; eggs overwinter and hatch in spring.