Melanostomini

The Melanostomini are a tribe of hoverflies. The tribe was first described as the subfamily Melanostominae by Williston in 1885. The tribe has at times been considered to be synonymous with Bacchini.

Description

Williston first described the group to include the genera Pyrophaena, Platycheirus, and Melanostoma as follows:
The modern concept of the group has changed considerably from this initial description.
A 2020 molecular phylogenetic study found that Bacchini sensu lato should be divided into two groups: Melanostoma and related genera, and Baccha and related genera.