Phragmatobia assimilans
Walker, 1855
Large Ruby Tiger Moth
Phragmatobia assimilans, the large ruby tiger , is a North American moth in the Erebidae. It is distinguished by its pinkish-red hindwings with black marginal banding. The occupies a broad geographic range across northern and western North America, with isolated in the Rocky Mountains. are active from late spring through August in a single .
Pronunciation
How to pronounce Phragmatobia assimilans: //ˌfræɡməˈtoʊbiə əˈsɪmɪlænz//
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Identification
The combination of pinkish-red hindwings with a black marginal band and dark distinguishes this from other North American tiger moths. The dusty orange-brown forewings with dark grey lines and discal spot provide additional diagnostic characters. Females are noticeably larger and darker than males.
Appearance
Forewings 14–19 mm in length, dusty medium to dark orange-brown with dark grey antemedial and postmedial lines and a dark grey discal spot. Hindwings pinkish red with black marginal band and dark . present: females larger and darker with better-developed forewing pattern.
Habitat
Open meadows and moist forests.
Distribution
North America from Nova Scotia to Connecticut, west to British Columbia. Isolated in northern Colorado and the Black Hills of South Dakota. Additional records from Alberta, Manitoba, and Saskatchewan in Canada.
Seasonality
active late spring to August. One per year.
Diet
Larvae feed on various herbaceous plants and low woody hardwood shrubs.
Life Cycle
One per year. Larval stage feeds on herbaceous plants and low woody shrubs. from late spring through August.