Abstract
Th e taxonomy and nomenclature of the Nearctic species of Enargia Hubner shows a long history of misunderstood species concepts and misapplied names, and the group is revised here. Enargia infumata (Grote, 1874) is a senior synonym of what has been referred to as E. mephisto Franclemont, 1939 for the past 70 years. Late summer moths from boreal areas of Canada and northeastern United previously identifi ed as E. infumata have no available name and are here described as E. fausta sp. n. A lectotype for Orthosia infumata Grote is designated. Adults and genitalia of the three North American species (E. infumata, E. fausta, and E. decolor) are illustrated, and a diagnostic key is provided.
Highlights
Enargia Hübner, [1821] contains about 13 species worldwide (Poole 1989). Fibiger and Hacker (2007) list eight Palaearctic species, and treat the Copyright B
The North American Enargia species fall into two groups, the decolor group and the infumata group; the decolor group currently includes only E. decolor, and possibly an unrecognized species (See ‘Remarks ‘ under E. decolor)
Enargia infumata and E. fausta make up the infumata group; E. fausta appears to be most closely related to the Eurasian E. paleacea
Summary
Enargia Hübner, [1821] (subtribe Cosmiina) contains about 13 species worldwide (Poole 1989). Fibiger and Hacker (2007) list eight Palaearctic species, and treat the Copyright B. Enargia Hübner, [1821] (subtribe Cosmiina) contains about 13 species worldwide (Poole 1989). Fibiger and Hacker (2007) list eight Palaearctic species, and treat the Copyright B. B. Christian Schmidt / ZooKeys 39: 205–223 (2010)
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