Orgyia definita
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Erebidae
Genus: Orgyia
Species:
O. definita
Binomial name
Orgyia definita
Packard, [1865]

Orgyia definita, the definite tussock moth or definite-marked tussock moth, is a moth of the family Erebidae. It was first described by Alpheus Spring Packard in 1865.[1] The species is found in eastern North America from Minnesota to New Brunswick and south to South Carolina, Mississippi, and Louisiana.[2][1]

The wingspan is about 30 mm for males; females are wingless. Adult males are brown with a darker pattern and some white markings.

The larvae feed on Salix, Quercus, Tilia, Ulmus, Betula, Acer rubrum, and Hamamelis virginiana. They have a yellow head, prothoracic plate and dorsal glands. The body is covered in whitish hairs and the verrucae (wart-like structures on the body) are pale yellow.

Caterpillar with many projecting hairs
Larva in Guelph, Ontario, Canada

References

  1. 1 2 "930166.00 – 8314 – Orgyia definita – Definite Tussock Moth – Packard, 1864". North American Moth Photographers Group. Mississippi State University. Retrieved May 16, 2020.
  2. Bartlett, Troy (June 20, 2018). "Species Orgyia definita - Definite Tussock Moth - Hodges#8314". BugGuide. Retrieved May 16, 2020.


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