| Moths of North Dakota |
Arctiidae: Arctiinae: Arctiini |
Phragmatobia assimilans Walker 1855
| Common name: Large ruby tiger moth.
Hodges #: 8158. Identification: Rfw 15.5 mm, fw opaque, without transverse lines; hw scarlet with broad fuscous marginal band. Similar species: 8156, 8157. Distribution: Canada and northern U.S., southward in Rockies to Colorado. Hosts: larvae are general feeders on herbaceous plants, Taraxicum-- dandelion and Plantago-- plantain in captivity, Betula-- birch and Populus balsamifera L.-- Balsam poplar in the wild. Note: moth at lower right is secreting greenish droplet of defensive fluid. Most arctiids have cyanide compounds in their hemolymph.
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MN, Lake Co., Lake Leander barrens, T60N R19W, Sec. 17. Hg/UV light, 30- V- 1992, coll. G. Fauske.
MN, Beltrami Co., Webster Lake camp ground, 27- V-
2002, pic. G. Fauske.
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