Flies
Order Diptera
The Flies (Order Diptera) includes 6,350 species across 141 families and 1,800 genera in our directory.
About Flies
Diptera includes over 150,000 described species of flies, mosquitoes, and midges. Mosquitoes are the deadliest animal on Earth (CDC). Malaria alone causes ~249 million cases and over 608,000 deaths annually, mostly children under 5 (WHO). Vector-borne diseases account for over 17% of all infectious diseases, causing 700,000+ deaths per year.
Economic Impact
In the U.S., vector-borne disease cases tripled between 2004-2016, with over 640,000 cases reported in that period (CDC). Tickborne diseases doubled from 22,000 to 48,000 annual reports. Globally, mosquito-borne diseases cost billions in healthcare and lost productivity.
Ecological Role
Despite their disease impact, flies are critical decomposers and pollinators. Hoverflies alone pollinate hundreds of crop and wildflower species. Flies are also the primary food source for many birds, bats, and fish. Forensic entomology relies heavily on fly species for crime scene analysis.
Families in Diptera (141)
Species in Diptera (6,350)
Melanagromyza arnoglossi
Melanagromyza arnoglossi
Melanagromyza blephiliae
Melanagromyza blephiliae
Melanagromyza eoflacensis
Melanagromyza eoflacensis
Melanagromyza gentianivora
Melanagromyza gentianivora
Melanagromyza hieracii
Melanagromyza hieracii
Melanagromyza martini
Melanagromyza martini
Melanagromyza minimoides
Melanagromyza minimoides
Melanagromyza palmeri
Melanagromyza palmeri
Melanagromyza phloxicaulis
Melanagromyza phloxicaulis
Melanagromyza verbenivora
Melanagromyza verbenivora
Melanagromyza virens
Melanagromyza virens
Melanderia mandibulata
Melanderia mandibulata
Melangyna arctica
Melangyna arctica
Melangyna fisherii
Melangyna fisherii
Melanochaeta kaw
Melanochaeta kaw
Melanomyza gracilipes
Melanomyza gracilipes
Melanomyza intermedia
Melanomyza intermedia
Melanomyza scutellata
Melanomyza scutellata
Melanomyza signatifrons
Melanomyza signatifrons
Melanophrys flavipennis
Melanophrys flavipennis
Meledonus californicus
Meledonus californicus
Meledonus latipennis
Meledonus latipennis
Melieria cana
Melieria cana
Melieria ochricornis
Melieria ochricornis
Melieria similis
Melieria similis
Meligramma cincta
Meligramma cincta
Meligramma guttata
Meligramma guttata
Meligramma triangulifera
Meligramma triangulifera
Meliscaeva cinctella
Meliscaeva cinctella
Meromacrus gloriosus
Meromacrus gloriosus
Meromyza americana
Meromyza americana
Merosargus beameri
Merosargus beameri
Merosargus caeruleifrons
Merosargus caeruleifrons
Merycomyia microcera
Merycomyia microcera
Mesembrina decipiens
Mesembrina decipiens
Mesembrina latreillii
Mesembrina latreillii
Mesosphaerocera annulicornis
Mesosphaerocera annulicornis
Messiasia californica
Messiasia californica
Metacosmus geronimo
Metacosmus geronimo
Metacosmus mancipennis
Metacosmus mancipennis
Metadioctria parvula
Metadioctria parvula
Metadioctria rubida
Metadioctria rubida
Metalimnobia fallax
Metalimnobia fallax
Metalimnobia immatura
Metalimnobia immatura
Metalimnobia triocellata
Metalimnobia triocellata
Metallic Black Pasture Fly
Diasemocera metallica
Metallic Micropanther
Atomosiella antennata
Metapogon amargosae
Metapogon amargosae
Metapogon carinatus
Metapogon carinatus
Metapogon gibber
Metapogon gibber
Metapogon punctipennis
Metapogon punctipennis
Metatrichia bulbosa
Metatrichia bulbosa
Metopia argyrocephala
Metopia argyrocephala
Metopia lateralis
Metopia lateralis
Metopia sinipalpis
Metopia sinipalpis
Metriocnemus erythranthei
Metriocnemus erythranthei
Metriocnemus eurynotus
Metriocnemus eurynotus
Mexico Chiselmouth
Andrenosoma corallium
Microcercis bispina
Microcercis bispina
Microcercis dorsata
Microcercis dorsata
Microcercis infesta
Microcercis infesta
Microcercis insularis
Microcercis insularis
Microcercis johanni
Microcercis johanni
Microcercis minor
Microcercis minor
Microchaetina mexicana
Microchaetina mexicana
Microchaetina petiolata
Microchaetina petiolata
Microchaetina subnitens
Microchaetina subnitens
Microchaetina valida
Microchaetina valida
Microdon abditus
Microdon abditus
Microdon cothurnatus
Microdon cothurnatus
Microdon fulgens
Microdon fulgens
Microdon globosus
Microdon globosus
Microdon lanceolatus
Microdon lanceolatus
Microdon manitobensis
Microdon manitobensis
Microdon megalogaster
Microdon megalogaster
Microdon painteri
Microdon painteri
Microdon pallipennis
Microdon pallipennis
Microdon ruficrus
Microdon ruficrus
Microdon scauros
Microdon scauros
Microdon tristis
Microdon tristis
Microdrosophila quadrata
Microdrosophila quadrata
Microlynchia pusilla 0
Microlynchia pusilla
Micropeza bisetosa
Micropeza bisetosa
Micropeza lineata
Micropeza lineata
Micropeza nitidor
Micropeza nitidor
Identification: A mostly shining black Micropeza .
Micropeza producta
Micropeza producta
Microphor obscurus
Microphor obscurus
Microphthalma nigra
Microphthalma nigra
Micropygomyia vexator
Micropygomyia vexator
Microstylum galactodes
Microstylum galactodes
Microstylum morosum
Microstylum morosum
Microtabanus pygmaeus
Microtabanus pygmaeus
Microtendipes pedellus
Microtendipes pedellus
Midge
Polypedilum Group
Migrant Hover Fly
Eupeodes corollae
Milbert's Proctacanthus
Proctacanthus milbertii
Milesia bella
Milesia bella
Milichiella lacteipennis
Milichiella lacteipennis
Minettia americanella
Minettia americanella
Minettia caesia
Minettia caesia