MICROCHAETINA van der Wulp, 1891: 212 (in key; full description in a subsequent fascicle, van der Wulp, 1891: 240). Type species: Microchaetina cinerea van der Wulp, 1891, by subsequent monotypy of van der Wulp, 1891: 241.
HYPENOMYIA Townsend, 1919c: 545 (junior homonym of Hypenomyia Grimshaw, 1901). Type species: Hypenomyia petiolata Townsend, 1919, by original designation.
STEVENIOPSIS Townsend, 1919c: 546. Type species: Steveniopsis sinuata Townsend, 1919, by original designation.
REINHARDIANA Arnaud, 1952: 58 (nomen novum for Hypenomyia Townsend, 1919).

cinerea van der Wulp, 1891.– Mexico, ?Florida (S&A, 1965), Arizona (CNC).
– Microchaetina cinerea van der Wulp, 1891: 241. Type data: syntypes, 2 males and 2 females (BMNH) (mention by Townsend, 1931a: 100, of "male Ht" is not regarded as a lectotype fixation because the specimen in question cannot be distinguished from among the 2 males in the type series). Type locality: Mexico, Sinaloa, Presidio de Mazatlán.

mexicana (Townsend, 1892).– Utah to Missouri, south to New Mexico and Texas, also Florida (S&A, 1965), California, Arizona, Montana (CNC).
– Rhinophora mexicana Townsend, 1892d: 168. Type data: syntypes, 6 males and 1 female (4 male syntypes in SEMK). Type locality: USA, New Mexico, Las Cruces.
– Microchaetina setifacies Reinhard, 1942b: 88. Type data: holotype male (CNC). Type locality: USA, Kansas, Manhattan.

petiolata (Townsend, 1919).– British Columbia, Oregon to Colorado, south to Mexico (S&A, 1965), California, Idaho, Wyoming, Texas (CNC).
– Hypenomyia petiolata Townsend, 1919c: 545. Type data: holotype female (USNM). Type locality: USA, Arizona, East Verde River, 4200 feet.

rubidiapex (Reinhard, 1942).– Washington to Wyoming, south to California and New Mexico (S&A, 1965), British Columbia (CNC).
– Hypenomyia rubidiapex Reinhard, 1942b: 89. Type data: holotype male (CNC). Type locality: USA, Utah.

sinuata (Townsend, 1919).– Washington, California, Colorado, New Mexico (S&A, 1965), British Columbia (CNC).
– Steveniopsis sinuata Townsend, 1919c: 547. Type data: holotype male (USNM). Type locality: USA, New Mexico, Pecos National Forest, Manzanares Creek, 7500 feet. subnitens (Reinhard, 1942).– Utah (S&A, 1965).
– Hypenomyia subnitens Reinhard, 1942b: 91. Type data: holotype male (CNC). Type locality: USA, Utah, Garden City.

teleta Reinhard, 1962.– California, Utah (S&A, 1965), Nevada (CNC).
– Microchaetina teleta Reinhard, 1962b: 217. Type data: holotype male (CAS). Type locality: USA, California, Mono County, 1 mile west of Tom's Place.

valida (Townsend, 1892).– Idaho to California, New Mexico, Mexico, and Texas (S&A, 1965), Utah, Arizona (CNC).
– Rhinophora valida Townsend, 1892d: 167. Type data: holotype male [abdomen missing] (SEMK). Type locality: USA, New Mexico, Las Cruces, San Andreas Mountains.