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)
Deuterophlebia nipponica
Deuterophlebia nipponica
Deuterophlebia sajanica
Deuterophlebia sajanica
Diadocidia borealis
Diadocidia borealis
Diadocidia spinosula
Diadocidia spinosula
Diadocidia stanfordensis
Diadocidia stanfordensis
Diadocidia valida
Diadocidia valida
Diastata adusta
Diastata adusta
Diastata boreonigra
Diastata boreonigra
Diastata carolinae
Diastata carolinae
Diastata cervinala
Diastata cervinala
Diastata costata
Diastata costata
Diastata falcata
Diastata falcata
Diastata flavicosta
Diastata flavicosta
Diastata fuscula
Diastata fuscula
Diastata inornata
Diastata inornata
Diastata interrupta
Diastata interrupta
Diastata nebulosa
Diastata nebulosa
Diastata ornata
Diastata ornata
Diastata repleta
Diastata repleta
Diastata stuckenbergi
Diastata stuckenbergi
Diastata tsacasi
Diastata tsacasi
Diastata ussurica
Diastata ussurica
Diastata vagans
Diastata vagans
Diastata whittingtoni
Diastata whittingtoni
Dilophus pectoralis
Dilophus pectoralis
Discomyza maculipennis
Discomyza maculipennis
Ditomyia fasciata
Ditomyia fasciata
Ditomyia mexicana
Ditomyia mexicana
Ditomyia zonata
Ditomyia zonata
Dixa capensis
Dixa capensis
Dixa nebulosa
Dixa nebulosa
Dixa nubilipennis
Dixa nubilipennis
Dixa puberula
Dixa puberula
Dixa serrifera
Dixa serrifera
Dixella aestivalis
Dixella aestivalis
Dixella cornuta
Dixella cornuta
Dixella cumbrica
Dixella cumbrica
Dixella fuscinervis
Dixella fuscinervis
Dixella limai
Dixella limai
Dixella martinii
Dixella martinii
Dixella neozelandica
Dixella neozelandica
Dixella torrentia
Dixella torrentia
Dohrniphora cornuta
Dohrniphora cornuta
Drosophila funebris
Drosophila funebris
Dryomyza badia
Dryomyza badia
Dryomyza formosa
Dryomyza formosa
Dryomyza pakistana
Dryomyza pakistana
Dryope flaveola
Dryope flaveola
Dryope melanderi
Dryope melanderi
Earomyia lonchaeoides
Earomyia lonchaeoides
Earomyia melnickae
Earomyia melnickae
Earomyia netherlandica
Earomyia netherlandica
Elachiptera cornuta
Elachiptera cornuta
Elachiptera tuberculifera
Elachiptera tuberculifera
Elaphropeza ephippiata
Elaphropeza ephippiata
Elmohardyia arnaudi
Elmohardyia arnaudi
Elmohardyia nicaraguensis
Elmohardyia nicaraguensis
Empis borealis
Empis borealis
Empis ciliata
Empis ciliata
Empis digramma
Empis digramma
Empis pennipes
Empis pennipes
Epiphragma ocellare
Epiphragma ocellare
Eudorylas maesi
Eudorylas maesi
Eudorylas mediterraneus
Eudorylas mediterraneus
Eudorylas subvexus
Eudorylas subvexus
Eugnoriste occidentalis
Eugnoriste occidentalis
Euhybus purpureus
Euhybus purpureus
Eusiphona cooperi
Eusiphona cooperi
Eustalomyia hilaris
Eustalomyia hilaris
Euthycera chaerophylli
Euthycera chaerophylli
Euthycera cribrata
Euthycera cribrata
Eutreta noveboracensis
Eutreta noveboracensis
Fannia armata
Fannia armata
Fannia genualis
Fannia genualis
Fannia lustrator
Fannia lustrator
Fannia manicata
Fannia manicata
Fannia mollissima
Fannia mollissima
Fannia ornata
Fannia ornata
Fannia pallitibia
Fannia pallitibia
Fannia postica
Fannia postica
Fannia posticata
Fannia posticata
Fannia prisca
Fannia prisca
Fannia serena
Fannia serena
Forcipomyia paludis
Forcipomyia paludis
Gaurax neozealandicus
Gaurax neozealandicus
Geomyza acutipennis
Geomyza acutipennis
Geomyza advena
Geomyza advena
Geomyza combinata
Geomyza combinata
Geomyza hackmani
Geomyza hackmani
Geomyza majuscula
Geomyza majuscula
Geomyza martineki
Geomyza martineki
Geomyza subnigra
Geomyza subnigra
Geomyza venusta
Geomyza venusta
Glabellula arctica
Glabellula arctica
Glutops singularis
Glutops singularis
Glyphidops filosus
Glyphidops filosus
Glyphidops pluricellatus
Glyphidops pluricellatus
Grallipeza paraplacida
Grallipeza paraplacida
Grallipeza scurra
Grallipeza scurra
Greenomyia mongolica
Greenomyia mongolica