■ Taxonomic and Host Catalogue of the Tachinidae of America North of Mexico
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Genus Euexorista Townsend, 1912

EUEXORISTA Townsend, 1912c: 166. Type species: Tachina futilis Osten Sacken, 1887 (= Euexorista rebaptizata Gosseries, 1989), by original designation.

rebaptizata Gosseries, 1989.– British Columbia to Québec and Maine, south to California and North Carolina (S&A, 1965, as futilis Osten Sacken), New Brunswick, Newfoundland, Nova Scotia (CNC).
– Tachina vanessae Harris, 1835: 599. Nomen nudum.
– Tachina (Exorista) futilis Osten Sacken, 1887: 161 (junior homonym of Tachina futilis Zetterstedt, 1844; described as "futilis Say, MSS"). Type data: syntypes, males and females, "numerous specimens" (1 female syntype in Harris Collection of MCZ and 1 male and 2 female syntypes in main collection of MCZ). Type locality: unknown (maybe Massachusetts according to Townsend, 1941: 264, and S&A, 1965: 1100). Type host: Vanessa atalanta (Linnaeus), Nymphalidae.
– Euexorista rebaptizata Gosseries, 1989: 4 (nomen novum for futilis Osten Sacken, 1887).

Hosts from Arnaud (1978: 213), as Euexorista futilis (Osten Sacken)*
Lepidoptera, Arctiidae
Apantesis oithona Strecker, Apantesis phalerata (Harris), Euchaetias egle (Drury), Isia isabella (J.E. Smith)
Lepidoptera, Geometridae
Ennomos subsignarius (Hübner)
Lepidoptera, Hesperiidae
Thymelicus lineola (Ochsenheimer)
Lepidoptera, Lasiocampidae
Malacosoma americanum (Fabricius), Malacosoma californicum californicum (Packard), Malacosoma californicum pluviale (Dyar), Malacosoma disstria Hübner, Malacosoma spp.
Lepidoptera, Noctuidae
Apamea apamiformis (Guenée), Autographa californica (Speyer), Hyppa xylinoides (Guenée), Nephelodes emmedonia (Cramer), Nycteola spp. (including N. cinereana Neumoegen & Dyar, N. columbiana H. Edwards and/or N. frigidana Walker), Sideridis maryx (Guenée)
Lepidoptera, Nymphalidae
Nymphalis milberti (Godart), Vanessa atalanta (Linnaeus), Vanessa cardui (Linnaeus), Vanessa spp.
Lepidoptera, Pyralidae
Ostrinia nubilalis (Hübner)
Lepidoptera, Saturniidae
Antheraea polyphemus (Cramer)


Arnaud, P.H., Jr. 1978. A host-parasite catalog of North American Tachinidae (Diptera). United States Department of Agriculture. Miscellaneous Publication 1319: 1–860.

*Host names (family and species) have not been changed from those given in Arnaud (1978). Each host is listed under the appropriate current tachinid name, with the tachinid name used in Arnaud (1978) cited if different from the current one. For more information about Arnaud (1978), and to see a complete list of tachinid names used in that work and their modern equivalents, click here.

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