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)
Scatella obsoleta
Scatella obsoleta
Scatella picea
Scatella picea
Scatella setosa
Scatella setosa
Scatella stagnalis
Scatella stagnalis
Scathophaga dasythrix
Scathophaga dasythrix
Scathophaga monticola
Scathophaga monticola
Scatopsciara atomaria
Scatopsciara atomaria
Scatopse alpestris
Scatopse alpestris
Scatopse notata
Scatopse notata
Schistostoma cirripes
Schistostoma cirripes
Schistostoma robustum
Schistostoma robustum
Schizohelea leucopeza
Schizohelea leucopeza
Schizomyia eupatoriflorae
Schizomyia eupatoriflorae
Schizomyia impatientis
Schizomyia impatientis
Schizomyia macrofila
Schizomyia macrofila
Schlingeria ammobata
Schlingeria ammobata
Schoenomyza dorsalis
Schoenomyza dorsalis
Schroederella fuscopicea
Schroederella fuscopicea
Sciara humeralis
Sciara humeralis
Sciomyza aristalis
Sciomyza aristalis
Sciomyza varia
Sciomyza varia
Sciophila novata
Sciophila novata
Sciophila plurisetosa
Sciophila plurisetosa
Sclerocoelus sordipes
Sclerocoelus sordipes
Scleropogon bradleyi
Scleropogon bradleyi
Scleropogon cinerascens
Scleropogon cinerascens
Scleropogon coyote
Scleropogon coyote
Scleropogon dispar
Scleropogon dispar
Scleropogon duncani
Scleropogon duncani
Scleropogon haigi
Scleropogon haigi
Scleropogon helvolus
Scleropogon helvolus
Scleropogon huachucanus
Scleropogon huachucanus
Scleropogon indistinctus
Scleropogon indistinctus
Scleropogon kelloggi
Scleropogon kelloggi
Scleropogon neglectus
Scleropogon neglectus
Scleropogon picticornis
Scleropogon picticornis
Scleropogon subulatus
Scleropogon subulatus
Scleropogon texanus
Scleropogon texanus
Scoliocentra bisetata
Scoliocentra bisetata
Scoliocentra fraterna
Scoliocentra fraterna
Scoliocentra tincta
Scoliocentra tincta
Scorpion Laphria
Laphria scorpio
Seashore Sandpirate
Lasiopogon actius
Secondary Screwworm
Cochliomyia macellaria
Semaphore Bandit
Cyrtopogon plausor
Senopterina caerulescens
Senopterina caerulescens
Sepedon americana
Sepedon americana
Sepedon borealis
Sepedon borealis
Sepedon floridensis
Sepedon floridensis
Sepedon neili
Sepedon neili
Sepedon pacifica
Sepedon pacifica
Sepsis neocynipsea
Sepsis neocynipsea
Sepsisoma flavescens
Sepsisoma flavescens
Sesqui Hammertail
Efferia tabescens
Setacera atrovirens
Setacera atrovirens
Setacera pilicornis
Setacera pilicornis
Setomima nitida
Setomima nitida
Shannonomyia lenta
Shannonomyia lenta
Sheep Ked
Melophagus ovinus
Sheep Nasal Bot Fly
Oestrus ovis
Shiny Dunerobber
Laphystia notata
Shiny Longhorn Robber
Eudioctria nitida
Shiny-edged Bandit
Cyrtopogon marginalis
Short-horned Pixie
Leptogaster brevicornis
Short-striped Hanging Thief
Diogmites esuriens
Showy Bandit
Cyrtopogon alleni
Siberian Sandpirate
Lasiopogon hinei
Sierra Wormlion
Vermileo comstocki
Silba fumosa
Silba fumosa
Silver Hammertail
Efferia tricella
Silvius abdominalis
Silvius abdominalis
Silvius jeanae
Silvius jeanae
Silvius notatus
Silvius notatus
Silvius philipi
Silvius philipi
Silvius pollinosus
Silvius pollinosus
Silvius quadrivittatus
Silvius quadrivittatus
Silvius sayi
Silvius sayi
Similar fruit fly
Drosophila simulans
Simulium (Simulium) fibrinflatum
Simulium fibrinflatum
Simulium (Simulium) tuberosum
Simulium tuberosum
Simulium bivittatum
Simulium bivittatum
Simulium clarum
Simulium clarum
Simulium trivittatum
Simulium trivittatum
Simulium vittatum
Simulium vittatum
Sinaloa Bandit
Cophura sodalis
Sintoria cyanea
Sintoria cyanea
Sintoria pappi
Sintoria pappi
Siphonella oscinina
Siphonella oscinina
Siphosturmia phyciodis
Siphosturmia phyciodis
Six-banded Pond Fly
Sericomyia sexfasciata
Six-spotted Bromeliad Fly
Copestylum sexmaculatum
Slender-winged Hanging Thief
Diogmites angustipennis
Slosson's Pond Fly
Sericomyia slossonae
Smoky-winged Sandpirate
Lasiopogon fumipennis
Snow Hammertail
Efferia snowi
Snow Mosquito
Aedes communis
Snow Twigsitter
Holopogon snowi
Sobarocephala atricornis
Sobarocephala atricornis
Sobarocephala cruciger
Sobarocephala cruciger
Sobarocephala flava
Sobarocephala flava