Argyresthia canadensis

Freeman, 1972

Sort #: 380.1 | P3 #: 360151 | MPG #: 2445
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Larval feeding type: leaf-miner
Larval substrate: Thuja occidentalis (Northern White Cedar)
Phenology: Adult: 6/25 (1 record)

Comment: The differences between A. freyella and A. canadensis adults are unclear. Freeman claimed that the median white basal streak of canadensis reaches 1/4 and in freyella it reaches 1/2, the costal basal streaks reach 1/4 and 1/3 respectively. However, there appears to be a lot of variation. Male genitalia are figure by Freeman and the two species have different host plants.

Status in MA (automated assessment): Restricted distribution, rare
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 1932
Last Year Reported: 2022

Distribution by County: Middlesex
Number of Records: 3