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Species Isochaetes beutenmuelleri - Beutenmueller's Slug Moth - Hodges#4675

BioBlitz Bug 54 - Isochaetes beutenmuelleri Caterpillar?  Larva? - Isochaetes beutenmuelleri Unknown Moth - Isochaetes beutenmuelleri Isochaetes beutenmuelleri - female Brown and white tufted moth? - Isochaetes beutenmuelleri isoch - Isochaetes beutenmuelleri slug moth - Isochaetes beutenmuelleri Spun Glass Slug Moth - Isochaetes beutenmuelleri
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Zygaenoidea (Flannel, Slug Caterpillar, Leaf Skeletonizer Moths and kin)
Family Limacodidae (Slug Caterpillar Moths)
Genus Isochaetes
Species beutenmuelleri (Beutenmueller's Slug Moth - Hodges#4675)
Hodges Number
Other Common Names
Spun Glass Slug Moth
Uncommon (1)
19-24mm wingspan (1)
Adult: FW yellowish with vague orangish brown lines and shading; sharpest marking a circular brown spot at midpoint between PM and ST shades. Female larger than male; the spot thicker and blackish.
New York to Florida, west to Colorado and Texas
Flies June to August (1)
Dyar reports the species to be polyphagous on deciduous trees (2)
See photographs for a caterpillar feeding on what appeared to be a birch (alder, perhaps).

Arnett spells the species name beutenm├╝lleri (3).
Print References
Covell, page 410, plate 55 (#20) (1)
Internet References
Moth Photographers Group - species page with photographs of living and pinned adults.
Adult photo at Maryland Moths
Male/Female photos at Georgia Lepidoptera
Adult photo by Bob Patterson
PDF with larval photos of other species in this genus
Works Cited
1.Peterson Field Guides: Eastern Moths
Charles V. Covell. 1984. Houghton Mifflin Company.
2.The Life-Histories of the New York Slug Caterpillars
Harrison G. Dyar. 1895. Journal of the New York Entomological Society.
3.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.