Macrostomus trilineatus is a species of dance flies, in the fly family Empididae.
References
^Rafael, José Albertino; Marques, Dayse Willkenia Almeida (2019). "Five new species of Macrostomus Wiedemann and a checklist of Empididae (s. str.) (Diptera) from Bolivia". Zootaxa. 4567 (2): 251–275. doi:10.11646/zootaxa.4567.2.3. PMID31715896. S2CID92556394.
