scientific name : Protoboarmia porcelaria
common name : Porcelain grey
information : This geometrid is widely distributed in wet conifer forests. Moths fly in midsummer. Caterpillars feed on the foliage of species of Pinaceae, notably Douglas-fir (Pseudotsuga menziesii). Similar species: Melanolophia imitata is larger, moths fly in early spring; Anavitrinella pampinaria forewing is gray with wavy black lines. Wingspan 3.0 cm. Forewing is pale mottled brown with faint dentate median and submarginal lines.
adult image :
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