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)
Hybomitra procyon
Hybomitra procyon
Hybomitra rhombica
Hybomitra rhombica
Hybomitra rupestris
Hybomitra rupestris
Hybomitra sexfasciata
Hybomitra sexfasciata
Hybomitra sonomensis
Hybomitra sonomensis
Hybomitra tetrica
Hybomitra tetrica
Hybomitra trepida
Hybomitra trepida
Hybomitra zonalis
Hybomitra zonalis
Hybos reversus
Hybos reversus
Hydatostega viridiflos
Hydatostega viridiflos
Hydrellia americana
Hydrellia americana
Hydrellia personata
Hydrellia personata
Hydrellia valida
Hydrellia valida
Hydrilla Tip-mining Midge
Cricotopus lebetis
Hydrophorus aestuum
Hydrophorus aestuum
Hydrophorus alboflorens
Hydrophorus alboflorens
Hydrophorus amplectens
Hydrophorus amplectens
Hydrophorus breviseta
Hydrophorus breviseta
Hydrophorus chrysologus
Hydrophorus chrysologus
Hydrotaea floccosa
Hydrotaea floccosa
Hydrotaea houghi
Hydrotaea houghi
Hydrotaea ignava
Hydrotaea ignava
Hydrotaea militaris
Hydrotaea militaris
Hydrotaea scambus
Hydrotaea scambus
Hydrotaea succedens
Hydrotaea succedens
Hylemya urbica
Hylemya urbica
Hyphantrophaga virilis
Hyphantrophaga virilis
Hypocharassus gladiator
Hypocharassus gladiator
Hypocritanus lemur
Hypocritanus lemur
Hyporhygma quadripunctatum
Hyporhygma quadripunctatum
Hypovoria cauta
Hypovoria cauta
Hyrmophlaeba texana
Hyrmophlaeba texana
Icelia triquetra
Icelia triquetra
Icosta albipennis
Icosta albipennis
Icosta americana
Icosta americana
Icterica circinata
Icterica circinata
Icterica seriata
Icterica seriata
Idioptera fasciolata
Idioptera fasciolata
Ilythea spilota
Ilythea spilota
Imitomyia sugens
Imitomyia sugens
Inkberry holly leafminer
Phytomyza glabricola
Iridescent Bromeliad Fly
Copestylum vesicularium
Isabelle's Bromeliad Fly
Copestylum isabellina
Ischnomyia albicosta
Ischnomyia albicosta
Jamesomyia geminata
Jamesomyia geminata
Janetiella ulmii
Janetiella ulmii
Japanagromyza aequalis
Japanagromyza aequalis
Japanagromyza inaequalis
Japanagromyza inaequalis
Jemez Bandit
Cyrtopogon jemezi
Johannsenomyia argentata
Johannsenomyia argentata
Juniper Tip Midge
Oligotrophus betheli
Jurinella lutzi
Jurinella lutzi
Jurinia pompalis
Jurinia pompalis
Keroplatus clausus
Keroplatus clausus
Kirbya setosa
Kirbya setosa
Kribiodorum perpulchrum
Kribiodorum perpulchrum
Laboratory Fruit Fly
Drosophila melanogaster
Ladybird Fly
Gymnosoma rotundatum
Laetodon laetus
Laetodon laetus
Laguna Longhorn Robber
Dioctria pleuralis
Lapposyrphus aberrantis
Lapposyrphus aberrantis
Lapposyrphus lapponicus
Lapposyrphus lapponicus
Lasia purpurata
Lasia purpurata
Lasiomma sedulum
Lasiomma sedulum
Lasiopogon monticola
Lasiopogon monticola
Lasioptera solani
Lasioptera solani
Lasioptera solidaginis
Lasioptera solidaginis
Lasioptera vitis
Lasioptera vitis
Latheticomyia tricolor
Latheticomyia tricolor
Lauxania nigrimana
Lauxania nigrimana
Lecanocerus compressiceps
Lecanocerus compressiceps
Leia oblectabilis
Leia oblectabilis
Leia winthemii
Leia winthemii
Leiomyza curvinervis
Leiomyza curvinervis
Leiomyza scatophagina
Leiomyza scatophagina
Lejota aerea
Lejota aerea
Lejota cyanea
Lejota cyanea
Lepidanthrax angulus
Lepidanthrax angulus
Lepidanthrax arnaudi
Lepidanthrax arnaudi
Lepidanthrax californicus
Lepidanthrax californicus
Lepidanthrax disjunctus
Lepidanthrax disjunctus
Lepidanthrax homologus
Lepidanthrax homologus
Lepidanthrax inauratus
Lepidanthrax inauratus
Lepidanthrax linsdalei
Lepidanthrax linsdalei
Lepidanthrax oribates
Lepidanthrax oribates
Lepidanthrax rauchi
Lepidanthrax rauchi
Lepidomyia micheneri
Lepidomyia micheneri
Lepidophora vetusta
Lepidophora vetusta
Lepiseodina conspicua
Lepiseodina conspicua
Lepiseodina superba
Lepiseodina superba
Leptocera caenosa
Leptocera caenosa
Leptocera fulva
Leptocera fulva
Leptoconops californiensis
Leptoconops californiensis
Leptogaster incisuralis
Leptogaster incisuralis
Leptometopa latipes
Leptometopa latipes
Leptomorphus bifasciatus
Leptomorphus bifasciatus
Leptomorphus hyalinus
Leptomorphus hyalinus
Leptomorphus nebulosus
Leptomorphus nebulosus
Leptopeza antennalis
Leptopeza antennalis
Leptopeza compta
Leptopeza compta