Genus Meromacrus Rondani

Plagiocera Macquart, 1842:119 (preocc. Klug 1834). Type species, Milesia cruciger Wiedemann (orig. des.) = acutus Fabricius. Preocc. by Klug, 1834 ( Hymenoptera).

Meromacrus Rondani, 1848:70 . Type species, Meromacrus ghilianii Rondani (mon.).

Refs.: Thompson, 1972b:144–145 (description); Thompson, 1999:330 (key); Thompson, 1981:155 (descript, key); Blatch et al. 2003:13–36 (rev. of Mesoamerican Meromacrus spp.); Thompson, 2003:6, 12 (key, syn. and taxonomic notes).

Plagiacera Stahl, 1883:97. Misspelling.

Pteroptila Loew, 1866:165 . Type species, decorus Loew (subs. des. of Coquillett, 1910:598).

Promilesia Lynch Arribalzaga, 1892:241 . Type species, nectarinoides Lynch Arribalzaga (mon.).

Metameromacrus Hull, 1942:1 . No Type species, designated. Nomen nudum.

Thalamopales Hull, 1949:401 . Type species, Helophilus scitus Walker (orig. des.).