Herpetotherinae is a subfamily of falconid birds of prey that includes eight species in two genera Herpetotheres (the laughing falcon) and Micrastur (forest falcons).

[1][2][3][4] Both genera are found in South America and the subfamily is basal to the other falconid subfamilies where they split off around 30.2 million years ago in the Oligocene epoch.

[4] The two extant herpetotherine genera split around 20 million years ago in the Miocene epoch with the extinct genus Thegornis.

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