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Digital Guide to Moth Identification

Geometridae
91a1461 – 7010   Nematocampa resistaria (Herrich-Schäffer, [1856])
             Horned Spanworm

© Nolie Schneider
Distribution: Caution: A single range map dot for a Canadian province may represent records without specific location data.
Similar Species:
  • Pinned specimens of related species. (Hint: select View by Region on the related species page.)
Synonymy: Microgonia resistaria Herrich-Schäffer, [1856]
Eugonobapta brunneolineata Hulst, [1901] 1900
Ania chagnoni Swett, 1913
Nematocampa expunctaria Grote, 1872
Nematocampa filamentaria Guenée, 1857
Phalaena limbata Haworth, 1809
Nematocampa orfordensis Cassino & Swett, 1922
Taxonomic Notes: Nematocampa resistaria (Herrich-Schäffer, [1856]), a replacement name for Phalaena limbata Haworth, 1809 (preoccupied), includes as a synonym Nematocampa expunctaria Grote, 1872 (Ferguson 1993).
References
  • Barcode of Life (BOLD) - Caution: Some specimens shown may not be sequenced. DNA barcode provides evidence of relatedness not proof of identification.
  • Ferguson, D. C., 2008. Moths of America North of Mexico, Fascicle 17.2: p. 29; pl. 1.4-7. order or free PDF
  • Ferguson, D.C., 1993. A revision of the species of Nematocampa (Geometridae: Ennominae) occurring in the United States and Canada. Journal of the Lepidopterists' Society, 47: 60-77.
  • Hall et al., 2021. The Moths of North Carolina - website (identification, habitats and life history)
  • Hulst, G.D., 1900. New species of Lepidoptera. Journal of the New York Entomological Society, 8(4): 218.
  • Powell, J. A. & P. A. Opler, 2009. Moths of Western North America, Pl. 31.7m; p. 220. Book Review and ordering
  • Species Page at Block Island Moths
  • Species Page at BugGuide.Net
  • Species Page at E. H. Strickland Museum
  • Species Page at Mass Moths
Nematocampa resistaria
© Machele White
Nematocampa resistaria
© Nolie Schneider
Nematocampa resistaria
© Bob Patterson
Nematocampa resistaria
© John Davis
Nematocampa resistaria
© Randy Newman
Nematocampa resistaria
© Rob Curtis
Nematocampa resistaria
© Phil Huntley-Franck - form oxfordensis
Nematocampa resistaria
© Bob Patterson
Nematocampa resistaria
© Elliotte Harold
Nematocampa resistaria
© Mark Dreiling - DNA
Nematocampa resistaria
© CNC - Jocelyn Gill
Nematocampa resistaria
© CNC - Jocelyn Gill
Nematocampa resistaria
© CNC - Jocelyn Gill
Nematocampa resistaria
© CNC - Jocelyn Gill
Nematocampa resistaria
© Gary Anweiler
Nematocampa resistaria
22mm – © Jim Vargo
Nematocampa resistaria
© Jeffrey C. Miller
Nematocampa resistaria
© Valerie G. Bugh

Nematocampa resistaria
© Tom Bentley

Nematocampa resistaria
© Alan Chin-Lee

Nematocampa resistaria
© David Silsbee

Nematocampa resistaria
© Valerie G. Bugh

Nematocampa resistaria
© Charles Lewallen

Nematocampa resistaria
© Josée Quimper (Quebec.ca) LG
on Quercus rubra
Nematocampa resistaria
© Josée Quimper (Quebec.ca) LG
on Betula alleghaniensis
Nematocampa resistaria
© Josée Quimper (Quebec.ca) LG
on Abies balsamea

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