Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Cyclophora dataria (Hulst, 1887)

Family: Geometridae
Subfamily: Sterrhinae
Identification: forewing uniformly yellowish to light brown with fine dark speckling and lines; AM line faint, median light dark, diffuse, slightly sinuate; PM line composed of several dark dots, sometimes connected by wavy line; terminal line composed of several dark dashes; discal spot hollow, filled with either ground color or white; outer margin usually falcate (concave near apex) with pointed apex hindwing similar pattern and color (including hollow discal spot) but outer margin rounded
Wing Span: 2.3-2.5 cm
Life History:
Flight: late spring and summer
Caterpillar Hosts: oak (Quercus spp.)
Adult Food:
Habitat: mixed or deciduous woods containing oak
Range: British Columbia to California, east to Arizona, north to Montana
Management Needs:
Taxonomy Notes: None.
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