Synonyms and other taxonomic changes
Macaria loricaria
Identification
A pale grey geometrid with indistinct markings. AM, PM and median dark lines usually present, the PM widest and slighltly darker. Patchy brown band distal to the PM band variably developed. Discal spot usually well-defined. Hindwings paler than the forewings, PM band usually visible.
Range
Alaska to Newfoundland and New York, south to Colorado.
Habitat
Generally common in mixedwood and deciduous forests
Season
Late June to late July, peaking in mid July
Food
The principal larval host is trembling aspen.