van Steenis, J. and Wyatt, N.P. 2020. The first species of Trichopsomyia Williston, 1888 (Diptera: Syrphidae) described from the Oriental region, with a discussion on the character states of the pilosity of the katepisternum. European Journal of Taxonomy. 687 (Jul. 2020). DOI:https://doi.org/10.5852/ejt.2020.687.