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)
Tipula sayi
Tipula sayi
Tipula schizomera
Tipula schizomera
Tipula silvestra
Tipula silvestra
Tipula siskiyouensis
Tipula siskiyouensis
Tipula subeluta
Tipula subeluta
Tipula tephrocephala
Tipula tephrocephala
Tipula tergata
Tipula tergata
Tipula tricolor
Tipula tricolor
Tipula triplex
Tipula triplex
Tipula trivittata
Tipula trivittata
Tipula valida
Tipula valida
Tipula vestigipennis
Tipula vestigipennis
Tipula williamsiana
Tipula williamsiana
Tipula xanthostigma
Tipula xanthostigma
Tolmerus vescus
Tolmerus vescus
Tomoplagia cressoni
Tomoplagia cressoni
Tomoplagia obliqua
Tomoplagia obliqua
Tomosvaryella subvirescens
Tomosvaryella subvirescens
Townsendia albomacula
Townsendia albomacula
Townsendia arenicola
Townsendia arenicola
Townsendia nigra
Townsendia nigra
Toxomerus arcifer
Toxomerus arcifer
Toxomerus corbis
Toxomerus corbis
Toxomerus dispar
Toxomerus dispar
Toxomerus floralis
Toxomerus floralis
Toxomerus jussiaeae
Toxomerus jussiaeae
Toxomerus mutuus
Toxomerus mutuus
Toxomerus parvulus
Toxomerus parvulus
Toxomerus verticalis
Toxomerus verticalis
Toxonevra jucunda
Toxonevra jucunda
Toxophora leucopyga
Toxophora leucopyga
Toxophora maxima
Toxophora maxima
Toxophora pellucida
Toxophora pellucida
Toxophora virgata
Toxophora virgata
Toxorhina magna
Toxorhina magna
Transverse Flower Fly
Eristalis transversa
Tree Snipefly
Chrysopilus laetus
Tribelos jucundum
Tribelos jucundum
Tricharaea simplex
Tricharaea simplex
Trichobius corynorhini
Trichobius corynorhini
Trichocera bimacula
Trichocera bimacula
Trichocera garretti
Trichocera garretti
Trichocera regelationis
Trichocera regelationis
Trichomyia nuda
Trichomyia nuda
Trichopoda indivisa
Trichopoda indivisa
Trichopoda subdivisa
Trichopoda subdivisa
Tricimba brunnicollis
Tricimba brunnicollis
Tricimba lineella
Tricimba lineella
Tricimba spinigera
Tricimba spinigera
Tricyphona auripennis
Tricyphona auripennis
Tricyphona autumnalis
Tricyphona autumnalis
Tricyphona calcar
Tricyphona calcar
Tricyphona constans
Tricyphona constans
Tricyphona gigantea
Tricyphona gigantea
Tricyphona johnsoni
Tricyphona johnsoni
Tricyphona septentrionalis
Tricyphona septentrionalis
Trigonometopus vittatus
Trigonometopus vittatus
Tripanurga importuna
Tripanurga importuna
Triphleba varipes
Triphleba varipes
Triploechus novus
Triploechus novus
Trisapromyza vittigera
Trisapromyza vittigera
Triton Hammertail
Efferia triton
Tritoxa cuneata
Tritoxa cuneata
Tritoxa decipiens
Tritoxa decipiens
Tritoxa pollinosa
Tritoxa pollinosa
Tritoxa ra
Tritoxa ra
Trixa conspersa
Trixa conspersa
Trixodes obesus
Trixodes obesus
Trixoscelis cinerea
Trixoscelis cinerea
Trixoscelis fumipennis
Trixoscelis fumipennis
Trixoscelis punctipennis
Trixoscelis punctipennis
Trixoscelis triplex
Trixoscelis triplex
Trochilodes skinneri
Trochilodes skinneri
Trophithauma rostrata
Trophithauma rostrata
Tropidia mamillata
Tropidia mamillata
Trupanea actinobola
Trupanea actinobola
Trupanea californica
Trupanea californica
Trupanea conjuncta
Trupanea conjuncta
Trupanea dacetoptera
Trupanea dacetoptera
Trupanea eclipta
Trupanea eclipta
Trupanea femoralis
Trupanea femoralis
Trupanea imperfecta
Trupanea imperfecta
Trupanea mevarna
Trupanea mevarna
Trupanea pseudovicina
Trupanea pseudovicina
Trupanea radifera
Trupanea radifera
Trupanea signata
Trupanea signata
Trupanea texana
Trupanea texana
Trupanea vicina
Trupanea vicina
Trupanea wheeleri
Trupanea wheeleri
Trypeta flaveola
Trypeta flaveola
Trypeta fractura
Trypeta fractura
Trypetisoma eutretoides
Trypetisoma eutretoides
Trypetisoma sticticum
Trypetisoma sticticum
Tufted Globetail Hover Fly
Sphaerophoria contigua
Tumor-stem Gall Midge
Asphondylia atriplicis
Two-spotted Bandit
Cyrtopogon bimacula
Two-striped Bandit
Cyrtopogon laphriformis
Two-striped Sandpirate
Lasiopogon bivittatus
Two-toned Laphria
Laphria partitor
Typopsilopa atra
Typopsilopa atra