Meromyza triangulina is a species of fly in the family Chloropidae, the grass flies. It is found in the Palearctic . The larvae feed on Festuca ovina and Festuca rubra.
^ Fauna Europaea
^ Bei-Bienko, G.Y. & Steyskal, G.C. (1988) Keys to the Insects of the European Part of the USSR, Volume V: Diptera and Siphonaptera, Parts I,II. Amerind Publishing Co., New Delhi.ISBN 81-205-0080-6 ISBN 81-205-0081-4
^ Emilia. Petrovna Nartshuk and L. I. Fedoseeva A review of the grassflies of the genus Meromyza Meigen, 1830 (Diptera, Chloropidae) of the Palaearctic fauna, with a key to the species, analysis of synonymy, host specialization, and geographical distribution: Part 1 Entomological Review 91(1) · March 2011 DOI: 10.1134/S001387381101009X pdf.