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Digital Guide to Moth Identification

Geometridae
911410.006958Tetracis formosa (Hulst, 1896)

Libby & Rick Avis
Distribution: Caution: A single range map dot for a Canadian province may represent records without specific location data.
Southern British Columbia south to California, eastward to southern Alberta, Idaho, Utah, Wyoming and Colorado. From ~ 2,850 - 7,600 ft. elev. Desert riparian canyons to dry coniferous forest.
Seasonality
and Size:
Early September - late November. FWL ~ 17-23 mm.
Genitalia: See Ferris & Schmidt (2010).
Similar Species:
  • Pinned specimens of related species. (Hint: select View by Region on the related species page.)
Synonymy: Gonodontis formosa Hulst, 1896
Taxonomic Notes: Tetracis formosa (Hulst, 1896), n. comb. in Ferris & Schmidt (2010), was formerly in the genus Synaxis.
References
Tetracis formosa
LG – Jim Troubridge
Tetracis formosa
40mm – Jim Vargo

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