Northern Thallophaga
Common NameNorthern Thallophaga
Scientific NameThallophaga taylori
FamilyGeometridae
SubfamilyEnnominae
Wingspan (mm)35
Wing Patterncryptic
Primary Colorsbrown, tan, dark brown
HabitatConiferous and mixed forests, woodlands
Geographic RangeWestern North America (Pacific Northwest)
Host PlantsDouglas-fir, Western Hemlock, fir species
Flight PeriodOctober to December
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesEggs are laid in late fall/early winter, larvae hatch in spring and feed on conifer needles, pupation occurs in the soil, and adults emerge in the fall.
Identification TipsLook for its mottled brown appearance with distinct wavy lines and its unusual flight period in late autumn and early winter, often found near coniferous forests.
Description
This moth has mottled brown forewings with darker, wavy transverse lines and scattered dark speckles, providing excellent camouflage against tree bark.
