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Digital Guide to Moth Identification

Geometridae
91a0675 – 7085   Mesothea incertata (Walker, [1863])
             Day Emerald

© Mike McIvor
Similar Species:
  • Pinned specimens of related species. (Hint: select View by Region on the related species page.)
Synonymy:
  • incertata (Walker, [1863]) (Nemoria) - MONA 1983: 7085
  • pruinata (Hufnagel, 1797) (Phalaena) excl. - MONA 1983: 7085.5
  • ssp. b. atropunctaria (Walker, [1863] 1862) (Aspitates) excl. - MONA 1983: 7085.5
    Note: "The taxon atropunctaria was described by Walker ([1863]) from “south Florida”, but according to Prout (1934), the type locality is incorrect; it is a British subspecies of a European species. The name atropunctaria has not appeared in the NA literature since Dyar et al. (1902). This entry (as well as the entries for the tribe, genus, and species) were omitted from the 2023 checklist but added in the errata." (Pohl & Nanz 2025)
  • ssp. a. incertata (Walker, [1863]) (Nemoria)
  • oporaria (Zeller, 1872) (Nemoria)
  • ssp. b. viridipennata (Hulst, 1896) (Eucrostis)
  • marinaria (Strecker, 1899) (Thamnonoma)
  • References (Caution: DNA barcoding at BOLD provides evidence of relatedness, not proof of identification; some BOLD specimens shown may not be sequenced.)
    • Barcode of Life (BOLD) - Caution: Identifications often erroneous; DNA barcode provides evidence of relatedness, not proof of identification; many specimens not sequenced.
    • Ferguson, D. C., 1985. Moths of America North of Mexico, Fascicle 18.1: p. 127; pl. 4.84-91. order or free PDF
    • Powell, J. A. & P. A. Opler, 2009. Moths of Western North America, Pl. 31.25m; p. 221. Book Review and ordering
    • Species Page at BugGuide.Net
    • Species Page at E. H. Strickland Museum
    • Species Page at Mass Moths
    • Species Page at iNaturalist
    Mesothea incertata
    © Jim Moore
    Mesothea incertata
    © Jason Dombroskie
    Mesothea incertata
    © Gary Anweiler
    Mesothea incertata
    LG – © Jim Troubridge
    Mesothea incertata
    17mm – © Jim Vargo
    Mesothea incertata
    © Canadian National Collection LG


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