Affiliated Geometer
Common NameAffiliated Geometer
Scientific NameStamnodes affiliata
FamilyGeometridae
SubfamilyLarentiinae
Wingspan (mm)28
Wing Patterncryptic
Primary Colorspale brown, dark brown, grey
HabitatOpen woodlands, shrublands, chaparral, dry slopes
Geographic RangeWestern North America (e.g., California, Oregon, Washington, Great Basin)
Host PlantsCeanothus, Purshia
Flight PeriodApril to October (multiple broods)
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesUndergoes complete metamorphosis; larvae feed on host plant leaves, pupation occurs in soil or leaf litter, and adults emerge to mate.
Identification TipsKey features include the mottled brown and grey cryptic pattern, a distinct dark discal spot on the forewing, and its presence in western North America, often near *Ceanothus* or *Purshia*.
Description
A small to medium-sized moth with mottled pale brown and dark brown wings, featuring a cryptic pattern that aids in camouflage. The forewings often display a dark discal spot and irregular transverse lines.
