MICRONYCHIA Brauer & Bergenstamm, 1889: 131 (also 1890: 63). Type species: Micronychia punctum Brauer & Bergenstamm, 1889 (= Tachina ruficauda Zetterstedt, 1838), by monotypy [Palearctic].
PLAGIOSIPPUS Reinhard, 1962a: 172. Type species: Plagiosippus invasor Reinhard, 1962, by original designation.

invasor (Reinhard, 1962).– California, Arizona (O'Hara, 2002).
– Plagiosippus invasor Reinhard, 1962a: 173. Type data: holotype male (CAS). Type locality: USA, Arizona, Cochise County, 4 miles west of Knicksville, Miller's Canyon.

maculipennis (Aldrich, 1926).– Yukon to Washington and Saskatchewan in the west, Québec to Newfoundland and Maine in the east (O'Hara, 2002), Alaska (CAS).
– Lypha maculipennis Aldrich, 1926e: 24. Type data: holotype female (CAS). Type locality: USA, Washington, Clallam County, Forks.

woodi O'Hara, 2002.– Yukon (O'Hara, 2002).
– Micronychia woodi O'Hara, 2002: 122. Type data: holotype male (CNC). Type locality: Canada, Yukon, 10 kilometres south of Carcross, 1830 metres.