species 25,499 observations

Lesser Maple Spanworm Moth

Macaria pustularia

Field notes

Speranza pustularia, the lesser maple spanworm, is a moth of the family Geometridae native to North America. Adults are on wing from May to July in the south and from June to August in the north. There is one generation per year.

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130 native plants
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Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided