Though small in absolute diversity of genera, the Hemitheini are nonetheless the largest tribes of geometer moths in the subfamily Geometrinae. Like most Geometrinae, they are small greenish "emerald moths". The tribe was first described by Charles Théophile Bruand d'Uzelle in 1846.

In some treatments the Comostolini, Hemistolini, Jodini, Microloxiini, Thalassodini and Thalerini are split off as independent tribes. But they are probably paraphyletic among themselves and with respect to the remaining Hemitheini. Consequently, until more information is available they are included in the Hemitheini here.

In other systems, the Geometrinae are defined in a more inclusive way; the Hemitheini are then ranked as a subtribe Hemitheiti.

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