obscurella Fallén, 1813: 251, (Notiphila).

Type locality, Sweden; ST F (ZIL).

Distr.: Afrotropical: Cape Verde Islands, Kenya, Rodriguez Islands, Zaire. Nearctic: Canada (New Foundland, Ontario, Quebec), United States (Alaska, Alabama, Arkansas, Arizona, California, Connecticut, District of Columbia, Florida, Georgia, Iowa, Illinois, Indiana, Kansas, Louisiana, Maine, Massachusetts, Maryland, Michigan, Missouri, Nebraska, New Hampshire, New Jersey, New Mexico, Nevada, New York, North Carolina, North Dakota, Ohio, Oregon, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Washington). Neotropical: Argentina, Bahamas, Bolivia, Brazil, Chile, Colombia, Costa Rica, Ecuador, Guatemala, Mexico (Veracruz), Panama, Paraguay, Peru, Venezuela, West Indies (Cuba, Dominica, Jamaica, Puerto Rico, St. Thomas). Palearctic: Austria, Algeria, Azores, Belgium, Bulgaria, Canary Islands, Croatia, Czech Republic, Estonia, Finland, France, Germany, Great Britain, Hungary, Iran, Italy, Jordan, Macedonia, Madeira Islands, Morocco, Netherlands, Poland, Romania, Russia (European Territory, Far East), Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, Yugoslavia. Refs.: Haliday, 1839: 224 (generic combination); Mathis & Zatwarnicki, 1995: 166 –168 (world catalog); 2010: 107–110 (revision); Zatwarnicki & Mathis, 2001: 22 (obscurella group).