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Digital Guide to Moth Identification

Saturniidae 890055 – 7746   Automeris io (Fabricius, 1775)              Io Moth

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© Maury Heiman - Large Map & Chart Report Errors About Maps

Larva and Host Plants: Host familiy: Acanthaceae Adoxaceae[Caprifoliaceae] Apiaceae Apocynaceae Aquifoliaceae Arecaceae[Palmae] Araceae A..  Host genera: Abies Acer Acoelorrhaphe Adonidia[=Veitchia] Albizia Amelanchier Amorpha Baptisia Bauhinia Begonia B...  Host extended: wide variety of dicotyledonous trees & shrubs in widely unrelated plant families (Powell & Opler 200...  (Kimberley & Douglas 2025) Similar Species: Pinned specimens of related species. (Hint: select View by Region on the related species page.) Synonymy: io (Fabricius, 1775) (Bombyx) - MONA 1983: 7746 argus Neumoegen & Dyar, 1893 (Automeris) caeca Igel, 1928 (Automeris) coloradensis Cockerell, 1914 (Automeris) corollaria (Perry, 1810) (Phalaena) fabricii (Boisduval, 1875) (Io) fuscus Luther, 1907 (Automeris) lilith (Strecker, 1877) (Hyperchiria) lutheri Cockerell, 1914 (Automeris) mexicana Draudt, 1929 (Automeris) neomexicana Barnes & Benjamin, 1922 (Automeris) packardi Schüssler, 1934 (Automeris) texana Barnes & Benjamin, 1922 (Automeris) varia (Walker, 1855) (Hyperchiria)

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. Factsheet at Florida Featured Creatures. Ferguson, D. C., 1972. Moths of America North of Mexico, Fascicle 20.2b: p. 157; pl. 12.1-17. order or free PDF Hall et al., 2021. The Moths of North Carolina - website (identification, habitats and life history) Powell, J. A. & P. A. Opler, 2009. Moths of Western North America, Pl. 37.4m; p. 239. 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 Block Island Moths Species Page at BugGuide.Net Species Page at Mass Moths Species Page at iNaturalist

© Bob Patterson - m. © Robert J. Nuell, Jr. © Bob Patterson - m. © Ken Childs © David Silsbee - m. © Larry Line - f. © Ronnie Gaubert - m. © Karl Hillig - f. © Carol Wolf - f. © Carol Wolf © Mark Dreiling - DNA

- 70mm – © Jim Vargo - 70mm – © Jim Vargo - 60mm – © Jim Vargo - 60mm – © Jim Vargo

© Seth Ausubel LG © Seth Ausubel LG © Machele White © Valerie G. Bugh © Canadian National Collection LG © Alan Chin-Lee 4th or 5th instar © Tucker J. Cooley LG eggs © Charles Lewallen © Troy Bartlett © Machele White © Alan Chin-Lee © Richard Crook LG

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