Northern Prairie Wildlife Research Center
Wingspan 3.5 cm. The wings are dark gray with fine black wavy lines. This geometrid is common in California and southwestern Oregon. Typically, two flight periods are observed, the first flight occurs from March to June and the second occurs in August and September. Caterpillars feed on snowberry (Ceanothus velutinus) and deerbrush (Ceanothus integerrimus).
Similar species: numerous species exhibit similar shades of gray, brown, and white colors with fine wavy black lines, such as Anavitrinella pampinaria and Iridopsis emasculata, however, A. packardaria is distinguished by its relatively small size and general dark gray color.