Lycia ursaria explained

Lycia ursaria, the stout spanworm moth or bear, is a moth of the family Geometridae. The species was first described by Francis Walker in 1860.^[1] It is found in southern Canada and the northern United States, south to New Jersey and Iowa.^[2]

The wingspan is about 45 mm.^[3] Adults are on wing from March to June in one generation per year.

The larvae feed on the leaves of various broadleaved trees and shrubs, including Alnus, Malus, Fraxinus, Tilia, Betula, Vaccinium, Cornus, Ulmus, Crataegus, Populus and Salix.

Notes and References

1. Web site: 911072.00 – 6651 – Lycia ursaria – Stout Spanworm Moth – (Walker, 1860) . North American Moth Photographers Group . Mississippi State University . November 14, 2020.
2. Web site: McLeod . Robin . October 20, 2018 . Species Lycia ursaria - Stout Spanworm Moth - Hodges#6651 . BugGuide . November 14, 2020.
3. Web site: Schmidt, B. C. . Anweiler, G. G. . amp . February 12, 2004 . Species Details Lycia ursaria . University of Alberta Museums . E.H. Strickland Entomological Museum . November 14, 2020.