Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Species Pyromorpha dimidiata - Orange-patched Smoky Moth - Hodges#4639

Net-winged Beetle (Lycidae) or Moth? - Pyromorpha dimidiata Orange Patched Smoky Moth - Pyromorpha dimidiata Orange-patched smoky moth - Pyromorpha dimidiata Pyromorpha - Pyromorpha dimidiata Pyromorpha? - Pyromorpha dimidiata Pyromorpha dimidiata (Orange-Patched Smoky Moth) - Pyromorpha dimidiata - male orange and black netwing beetle-mimic moth - Pyromorpha dimidiata Orange-patched Smoky Moth - Dorsal - Pyromorpha dimidiata
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 Zygaenidae (Leaf Skeletonizer Moths)
Subfamily Procridinae
Genus Pyromorpha
Species dimidiata (Orange-patched Smoky Moth - Hodges#4639)
Hodges Number
Wingspan 18-28 mm
Day-flying. Wings black, translucent, basal half of forewing orange. Note that inner margin of forewing is black, orange in rather similar Lycomorpha. Also note phenology: Pyromorpha flies in early summer, Lycomorpha in late summer, fall.
Eastern and central North America
Deciduous forests and nearby fields, presumably
The solitary larva "lives beneath the fallen leaves in oak woods, feeding on the dead and decaying leaves." (Dyar, 1897)
Adults take nectar.
Life Cycle
Adults likely mimics of Lycid beetles, but also reported to have chemical defenses of their own.
See Also
Black-and-yellow Lichen Moth--Lycomorpha pholus

See also the presumed model of the mimicry, the Lycid beetles of genus Calopteron.
Print References
Covell, p. 414, plate 57 #4 (1)
Dyar, H.G., 1897. Life History of Pyromorpha dimidiata H. S. Psyche 8: 128–129.
Internet References
Works Cited
1.Peterson Field Guides: Eastern Moths
Charles V. Covell. 1984. Houghton Mifflin Company.