Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Stamnodes fervefactaria (Grote, 1881)

Family: Geometridae
Subfamily: Larentiinae
Identification: Very closely similar to S. deceptiva, but usually found at higher elevations and apparently ranging farther northward. Averaging larger in size. Light coloring variable in hue, often orange above and distinctly pinkish below, or may also be distinctly yellowish. Pattern variable, but usually front wing with light markings near apex forming a "Y" shape, with a distinct trunk below the diverging arms; with outer arm usually not, or only somewhat irregular along outer margin and sometimes strongly reduced or absent; with costa at base of wing yellow to red. Hind wing with large dark zone near costa on outer half of wing wider than tall (following axis of wing). See also note by D.J. Ferguson here http://bugguide.net/node/view/439695
Wing Span: 2.4-3.0 cm
Life History:
Flight: Summer, mostly in August
Caterpillar Hosts:
Adult Food:
Range: Southern Colorado southward thru New Mexico and Arizona into Mexico
Management Needs:
Taxonomy Notes: None.
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