Thopeutis forbesellus

Fernald, 1896

Thopeutis forbesellus is a crambid described by Charles H. Fernald in 1896. It occurs across eastern and central North America, with a wingspan of approximately 30 mm. fly from spring through late summer.

Pronunciation

How to pronounce Thopeutis forbesellus: /θoʊˈpjuːtɪs fɔrˈbɛsələs/

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Identification

The Thopeutis is distinguished from related crambid genera by genitalic characters. -level identification within the genus requires examination of male genitalia. The small size (30 mm wingspan) and broad North American distribution may help separate it from some regional , though similar unmarked crambid are common.

Appearance

Wingspan approximately 30 mm. Specific coloration and wing pattern details are not documented in available sources.

Distribution

North America: recorded from California, Illinois, Indiana, Louisiana, Maine, Maryland, Massachusetts, Minnesota, New Brunswick, Ohio, Ontario, Quebec, South Carolina, and Vermont.

Seasonality

on wing April to August.

Similar Taxa

  • Other Thopeutis species-level characters overlap; separation requires genitalic dissection.
  • Unmarked Crambidae in the 25-35 mm rangeSimilar size and general appearance; accurate identification requires reference to genitalic or regional keys.

More Details

Family placement

Some sources (GBIF, Catalogue of Life) list this in Pyralidae rather than Crambidae. This reflects historical classification; modern treatments place Thopeutis in Crambidae ( Crambinae or related group), though subfamily assignment may vary by source.

Sources and further reading