The tribe was erected by Richard Mally, James E. Hayden, Christoph Neinhuis, Bjarte H. Jordal and Matthias Nuss in 2019.

[1] Adult Trichaeini are characterised by a single synapomorphy in the male genitalia: a raised sclerotised ridge is present on the sacculus, running from the basal to the dorsodistal part.

In some Prophantis species, the anterior end of the signum is split into two anterolateral legs – a condition that is also found in Syngamia in the Nomophilini.

They are known to also feed on the Rubiaceae plants Bertiera zaluzania, Gardenia, Ixora coccinea and Tricalysia, the Verbenaceae Duranta plumieri, and Triclisia in the Menispermaceae.

[2][3] Trichaea larvae feed on species of Psychotria, on Morinda panamensis and Margaritopsis microdon (all Rubiaceae), but were also recorded from Urticaceae and Celastraceae.