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)
Paralimna thomae
Paralimna thomae
Paramormia corniculata
Paramormia corniculata
Paramormia furcata
Paramormia furcata
Paramyiolia nigricornis
Paramyiolia nigricornis
Parapegomyia socculata
Parapegomyia socculata
Paraphaenocladius exagitans
Paraphaenocladius exagitans
Paraplatypeza coraxa
Paraplatypeza coraxa
Paraplatypeza velutina
Paraplatypeza velutina
Pararchytas decisus
Pararchytas decisus
Parascatopse sonorensis
Parascatopse sonorensis
Parascatopse wirthi
Parascatopse wirthi
Parasetigena silvestris
Parasetigena silvestris
Parasitic Fly
Gymnosoma species
Parasitic Fly
Prosenoides flavipes
Parastenopa limata
Parastenopa limata
Parasyrphus currani
Parasyrphus currani
Parasyrphus semiinterruptus
Parasyrphus semiinterruptus
Parataracticus wyliei
Parataracticus wyliei
Paratendipes nitidulus
Paratendipes nitidulus
Paraterellia immaculata
Paraterellia immaculata
Paraterellia superba
Paraterellia superba
Paraterellia varipennis
Paraterellia varipennis
Paraterellia ypsilon
Paraterellia ypsilon
Paravilla aridula
Paravilla aridula
Paravilla californica
Paravilla californica
Paravilla cinerea
Paravilla cinerea
Paravilla cunicula
Paravilla cunicula
Paravilla deserta
Paravilla deserta
Paravilla edititoides
Paravilla edititoides
Paravilla fulvicoma
Paravilla fulvicoma
Paravilla fumida
Paravilla fumida
Paravilla fumosa
Paravilla fumosa
Paravilla lacunaris
Paravilla lacunaris
Paravilla mercedis
Paravilla mercedis
Paravilla mexicana
Paravilla mexicana
Paravilla montivaga
Paravilla montivaga
Paravilla splendida
Paravilla splendida
Paravilla syrtis
Paravilla syrtis
Paravilla tricellula
Paravilla tricellula
Parectecephala eucera
Parectecephala eucera
Parectecephala maculiceps
Parectecephala maculiceps
Parectecephala maculosa
Parectecephala maculosa
Parectecephala sanguinolenta
Parectecephala sanguinolenta
Parhelophilus divisus
Parhelophilus divisus
Parhelophilus integer
Parhelophilus integer
Parhelophilus laetus
Parhelophilus laetus
Parhelophilus obsoletus
Parhelophilus obsoletus
Parhelophilus rex
Parhelophilus rex
Parochthiphila spectabilis
Parochthiphila spectabilis
Paroedopa punctigera
Paroedopa punctigera
Parydra aquila
Parydra aquila
Parydra quadrituberculata
Parydra quadrituberculata
Patelloa pachypyga
Patelloa pachypyga
Paykullia maculata
Paykullia maculata
Peacock Fly
Callopistromyia annulipes
Pedicia bellamyana
Pedicia bellamyana
Pedicia contermina
Pedicia contermina
Pedicia magnifica
Pedicia magnifica
Pedicia parvicellula
Pedicia parvicellula
Pedicia procteriana
Pedicia procteriana
Pegomya atlanis
Pegomya atlanis
Pegomya carduorum
Pegomya carduorum
Pegomya depressiventris
Pegomya depressiventris
Pegomya exilis
Pegomya exilis
Pegomya pseudobicolor
Pegomya pseudobicolor
Pegomya rufescens
Pegomya rufescens
Pegomya wygodzinskyi
Pegomya wygodzinskyi
Pelastoneurus dissimilipes
Pelastoneurus dissimilipes
Pelastoneurus kansensis
Pelastoneurus kansensis
Pelastoneurus lugubris
Pelastoneurus lugubris
Pelastoneurus vagans
Pelastoneurus vagans
Pelecocera pergandei
Pelecocera pergandei
Peleteria haemorrhoa
Peleteria haemorrhoa
Pellucid Hover Fly
Volucella pellucens
Pelomyia coronata
Pelomyia coronata
Peloropeodes brevis
Peloropeodes brevis
Penniverpa epidema
Penniverpa epidema
Penniverpa festina
Penniverpa festina
Penthetria arizonensis
Penthetria arizonensis
Penthosia satanica
Penthosia satanica
Pepper Maggot
Zonosemata electa
Peracecis fugitiva
Peracecis fugitiva
Peratomyia vittata
Peratomyia vittata
Pericoma signata
Pericoma signata
Periscelis flinti
Periscelis flinti
Periscepsia helymus
Periscepsia helymus
Peronyma quadrifasciata
Peronyma quadrifasciata
Petroleum Fly
Diasemocera petrolei
Phaenopsectra obediens
Phaenopsectra obediens
Phalacrotophora longifrons
Phalacrotophora longifrons
Phaonia apicata
Phaonia apicata
Phaonia atlanis
Phaonia atlanis
Phaonia fuscana
Phaonia fuscana
Phaonia nigricans
Phaonia nigricans
Phaonia pulvillata
Phaonia pulvillata
Phasia purpurascens
Phasia purpurascens
Phasia subopaca
Phasia subopaca
Phasiops flavus
Phasiops flavus
Pherbecta limenitis
Pherbecta limenitis
Pherbellia albovaria
Pherbellia albovaria