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)
Erioptera megophthalma
Erioptera megophthalma
Erioptera parva
Erioptera parva
Erioptera uliginosa
Erioptera uliginosa
Erioptera venusta
Erioptera venusta
Erioptera vespertina
Erioptera vespertina
Eristalinus (Eristalodes) taeniops
Eristalinus taeniops
Eristalis anthophorina
Eristalis anthophorina
Eristalis bellardii
Eristalis bellardii
Eristalis brousii
Eristalis brousii
Eristalis fratercula 0
Eristalis fratercula
Eristalis gomojunovae
Eristalis gomojunovae
Eristalis interrupta
Eristalis interrupta
Eristalis obscura
Eristalis obscura
Eristalis rupium
Eristalis rupium
Eristalis stipator
Eristalis stipator
Ernoneura argus
Ernoneura argus
Esenbeckia delta
Esenbeckia delta
Esenbeckia incisuralis
Esenbeckia incisuralis
Esenbeckia tinkhami
Esenbeckia tinkhami
Estheria cinerea
Estheria cinerea
Euantha litturata
Euantha litturata
Euaresta stelligera
Euaresta stelligera
Euaresta stigmatica
Euaresta stigmatica
Euaresta tapetis
Euaresta tapetis
Euarestoides abstersus
Euarestoides abstersus
Euarestoides acutangulus
Euarestoides acutangulus
Eucelatoria bryani
Eucelatoria bryani
Eucessia rubens
Eucessia rubens
Euclytia flava
Euclytia flava
Eucorethra underwoodi
Eucorethra underwoodi
Eudasyphora cyanicolor
Eudasyphora cyanicolor
Eudicrana obumbrata
Eudicrana obumbrata
Eudorylas aequus
Eudorylas aequus
Eugaurax floridensis
Eugaurax floridensis
Eugnophomyia apache
Eugnophomyia apache
Eugnophomyia luctuosa
Eugnophomyia luctuosa
Euhybus coquilletti
Euhybus coquilletti
Euhybus strumaticus
Euhybus strumaticus
Euleia fratria
Euleia fratria
Euleia uncinata
Euleia uncinata
Eulonchus marginatus
Eulonchus marginatus
Eulonchus sapphirinus
Eulonchus sapphirinus
Eulonchus smaragdinus
Eulonchus smaragdinus
Eulonchus tristis
Eulonchus tristis
Eumegaparia flaveola
Eumegaparia flaveola
Eumetopiella varipes
Eumetopiella varipes
Euparyphus albipilosus
Euparyphus albipilosus
Euparyphus arizonae
Euparyphus arizonae
Euparyphus brevicornis
Euparyphus brevicornis
Euparyphus cinctus
Euparyphus cinctus
Euparyphus stigmaticalis
Euparyphus stigmaticalis
Euparyphus tricolor
Euparyphus tricolor
Eupeodes fumipennis
Eupeodes fumipennis
Eupeodes montivagus
Eupeodes montivagus
Eupeodes perplexus
Eupeodes perplexus
Eupeodes pomus
Eupeodes pomus
Eupeodes snowi
Eupeodes snowi
Euphylidorea niveitarsis
Euphylidorea niveitarsis
Euptilopareia vicinalis
Euptilopareia vicinalis
European Cherry Fruit Fly
Rhagoletis cerasi
European Drone Fly
Eristalis arbustorum
Eurosta comma
Eurosta comma
Eurosta cribrata
Eurosta cribrata
Eurosta fenestrata
Eurosta fenestrata
Euryneura propinqua
Euryneura propinqua
Euryphthiria grandis
Euryphthiria grandis
Eusiphona mira
Eusiphona mira
Euthera bicolor
Euthera bicolor
Euthera setifacies
Euthera setifacies
Euthera tentatrix
Euthera tentatrix
Eutonia marchandi
Eutonia marchandi
Eutreta angusta
Eutreta angusta
Eutreta caliptera
Eutreta caliptera
Eutreta fenestrata
Eutreta fenestrata
Eutreta hespera
Eutreta hespera
Eutrichota finitima
Eutrichota finitima
Eutrichota fuscipes
Eutrichota fuscipes
Eutrichota gopheri
Eutrichota gopheri
Eutrichota impolita
Eutrichota impolita
Eutrichota incompleta
Eutrichota incompleta
Eutrichota lividiventris
Eutrichota lividiventris
Eutrichota spinosissima
Eutrichota spinosissima
Eutrixa exilis
Eutrixa exilis
Euxesta eluta
Euxesta eluta
Euxesta nitidiventris
Euxesta nitidiventris
Exechia cincinnata
Exechia cincinnata
Exepacmus johnsoni
Exepacmus johnsoni
Exiliscelis californiensis
Exiliscelis californiensis
Exodontha luteipes
Exodontha luteipes
Exoprosopa anomala
Exoprosopa anomala
Exoprosopa argentifasciata
Exoprosopa argentifasciata
Exoprosopa bifurca
Exoprosopa bifurca
Exoprosopa brevirostris
Exoprosopa brevirostris
Exoprosopa clarki
Exoprosopa clarki
Exoprosopa decora
Exoprosopa decora
Exoprosopa divisa
Exoprosopa divisa
Exoprosopa dodrans
Exoprosopa dodrans
Exoprosopa dodrina
Exoprosopa dodrina
Exoprosopa dorcadion
Exoprosopa dorcadion
Exoprosopa eremita
Exoprosopa eremita