Meomyia fasciculata 
Mesembrina latreillii 
Mesembrius bengalensis 
Metalimnobia zetterstedti 
Metaphryno bella 
Mexican Cactus Fly 
Microtropesa sinuata 
Migrant Hover Fly 
Milesia crabroniformis 
Miltinus viduatus 
Mimegralla albimana 
Minettia fasciata 
Minettia lupulina 
Mintho rufiventris 
Molobratia teutonus 
Monoceromyia javana 
Mydaea urbana 
Mydas ventralis 
Myopa buccata 
Myopa picta 
Narcissus Bulb Fly 
Narrow-Banded Picture-Winged Fly 
Narrow-cheeked Clusterfly 
Narrow-headed Marsh Fly