Two new species of Asymphyloptera Collin (Diptera: Empididae: Clinocerinae) from Colombia, with an updated key to males of New World species.

The genus Asymphyloptera is recorded from Colombia for the first time, with the description of two new species from Parque Natural Regional Cerro Pramo de Miraflores: A. miraflorensis sp. nov. and A. tama sp. nov. The two species are illustrated, and an updated key and distribution map for all New World species are presented.

First records of Pieza Evenhuis, 2002 (Diptera: Mythicomyiidae: Mythicomyiinae) from Colombia, with description of a new species from arid zones of a Tropical dry forest.

Pieza Evenhuis, 2002 has a New World distribution and is a poorly studied group in the Neotropical Region, and completely unknown in Colombia. We recorded for the first time the genus Pieza in Colombia with two species, namely Pieza rafaeli Mendes et al., 2019 and we described Pieza globosa sp. nov. (type-locality: Sabanalarga, Boca de Niquia) from arid zones of a Tropical dry forest. Illustrations and a distribution map are presented.