The dipteran family Celyphidae in the New World, with discussion of and key to world genera (Insecta, Diptera)

The family Celyphidae (Diptera, Lauxanioidea) is verified as part of the New World fauna, with a second specimen discovered of a species described from French Guiana in 1844 by P.J.M. Macquart. As this species possesses characteristics that clearly suggest a separate lineage from the Old World celyphids, a new genus is proposed, , with the type species, Macquart, in the new combination (Macquart), A key to world genera of Celyphidae is presented, along with discussion of generic concepts. Frey is synonymized under Hendel, , resulting in the following 10 new combinations: (Walker), ; (Bezzi), ; (Speiser), ; (Frey), ; (Vanschuytbroek), ; (Vanschuytbroek), ; (Vanschuytbroek), ; (Vanschuytbroek), ; (Vanschuytbroek), ; (Vanschuytbroek), The subgenera of Dalman are elevated to genus rank, as Bigot, , and Frey, , resulting in the following 17 new and revised combinations: (Shi), ; (Frey), ; Frey, ; Frey, ; (Shi), ; (Tenorio), ; (Liu & Yang), ; (Tenorio), ; Frey, ; (Tenorio), ; (Malloch), ; (Shi), ; Frey, ; Chen, ; Bigot, ; (Shi), ; (Shi),