New York Natural Heritage Program
A Geometrid Moth
Euchlaena madusaria (Walker, 1860)
Insects

Identifying Characteristics [-]
This is a yellow-tan moth with thin, distinct antemedial, postmedial, and subterminal lines. The outer third of the forewing is darker with a pale mark at the tip. The edge of the forewing is smooth (Schmidt 2003). The wingspan is approximately 28 mm. The larvae are grey-brown and striped, and look like twigs (McGuffin 1981).

Best Life Stage for Proper Identification [-]
The adult is the best life stage for identification. It is recommended that larvae be reared to the adult stage for positive identification.

Behavior [-]
Adults are nocturnal and lay up to 225 eggs. Eggs hatch in approximately ten days. Larvae overwinter when they are almost mature (McGuffin 1981).

Diet [-]
Larvae are reported to feed on various trees (including oaks) and blueberry.
A Geometrid Moth Images
click to enlarge
The Best Time to See
The best time to see Euchlaena madusaria is during its flight season. In New York State, it has been captured flying most often in June, and also in late May and in early September.
J F M A M J J A S O N D
Present Reproducing
The time of year you would expect to find A Geometrid Moth present (blue shading) and reproducing (orange shading) in New York.