Dolichopus is a large cosmopolitan genus of flies in the family Dolichopodidae.

Adults are small flies, typically less than 8 mm in length.

Nearly all species are metallic greenish-blue to greenish-bronze.

[3] It is the largest genus of Dolichopodidae with more than 600 species worldwide.

[4] The name of the genus (δολιχός, long, and ποὺς, foot) refers to the length of the feet of its species.