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Digital Guide to Moth Identification

Noctuidae
931981 – 9318   Alypia langtoni Couper, 1865
             Langton's Forester Moth

© Larry de March
Larva and
Host Plants:
Host familiy: Onagraceae Rosaceae Vitaceae.  Host genera: Chamaenerion Epilobium Oenothera Parthenocissus Spiraea .  Notes: specialist on Epilobium (Crabo et al 2014).  (Shropshire & Douglas 2025)
Similar Species:
  • Pinned specimens of related species. (Hint: select View by Region on the related species page.)
Synonymy:
  • langtoni Couper, 1865 (Alypia) - MONA 1983: 9318
  • brannani Stretch, 1872 (Alypia) - MONA 1983: [9323]
  • hudsonica; Barnes & McDunnough, 1917 (Alypia) missp.; TL: (no type).
  • hutsonia Edwards, 1884 (Alypia)
  • sacramenti Grote & Robinson, 1868 (Alypia)
  • sacramento; McDunnough, 1938 (Alypia) missp.; TL: (no type).
  • 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.
    • Powell, J. A. & P. A. Opler, 2009. Moths of Western North America, Pl. 51.6f, 51.7f; p. 284. Book Review and ordering
    • Shropshire, K.J. & D.W. Tallamy, 2025. Lepidoptera of North America, north of Mexico: an annotated list containing geographic ranges and host-plant records. ZooKeys, 1261: 101-113; Suppl. 1. (PDF or read online)
    • Species Page at BugGuide.Net
    • Species Page at E. H. Strickland Museum
    • Species Page at Pacific Northwest Moths
    • Species Page at The Noctuidae of North America by Robert W. Poole (Nearctica.com) - archived page access (go to a year prior to 2020 and select a blue circled date from the calendar).
    • Species Page at iNaturalist
    Alypia langtoni
    © Anthony W. Thomas
    Alypia langtoni
    © Vincent Lucas
    Alypia langtoni
    © Jason Dombroskie
    Alypia langtoni
    LG – © Jim Troubridge
    Alypia langtoni
    – © Robert W. Poole
    Alypia langtoni
    – © Robert W. Poole
    Alypia langtoni
    © Harvey Schmidt LG

    Alypia langtoni
    © Tom Murray LG

    Alypia langtoni
    © Anthony W. Thomas


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