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)
Allopiophila luteata
Allopiophila luteata
Allotrichoma abdominale
Allotrichoma abdominale
Alluaudomyia bella
Alluaudomyia bella
Alluaudomyia needhami
Alluaudomyia needhami
Alluaudomyia parva
Alluaudomyia parva
Alotanypus venustus
Alotanypus venustus
Amauromyza pleuralis
Amauromyza pleuralis
Amauromyza shepherdiae
Amauromyza sheperdiae
Amblypsilopus bradleii
Amblypsilopus bradleii
Amblypsilopus dimidiatus
Amblypsilopus dimidiatus
Amblypsilopus rotundiceps
Amblypsilopus rotundiceps
American Serpentine Leafminer
Liriomyza trifolii
Ametrodiplosis fistulosae
Ametrodiplosis fistulosae
Ammonaios confusus
Ammonaios confusus
Amoebaleria defessa
Amoebaleria defessa
Amoebaleria infuscata
Amoebaleria infuscata
Amoebaleria perplexa
Amoebaleria perplexa
Amoebaleria spectabilis
Amoebaleria spectabilis
Ampelomyia vitiscoryloides
Ampelomyia vitiscoryloides
Ampelomyia vitispomum
Ampelomyia vitispomum
Amphicnephes fasciola
Amphicnephes fasciola
Amphicnephes pullus
Amphicnephes pullus
Amphicosmus arizonicus
Amphicosmus arizonicus
Amphipogon hyperboreus
Amphipogon hyperboreus
Anasimyia distincta
Anasimyia distincta
Anasimyia grisescens
Anasimyia grisescens
Anasimyia perfidiosus
Anasimyia perfidiosus
Anastoechus barbatus
Anastoechus barbatus
Anevrina luggeri
Anevrina luggeri
Anna's Bromeliad Fly
Copestylum anna
Anopheles atropos
Anopheles atropos
Anopheles earlei
Anopheles earlei
Anopheles franciscanus
Anopheles franciscanus
Anopheles freeborni
Anopheles freeborni
Anopheles perplexens
Anopheles perplexens
Anoplodonta nigrirostris
Anoplodonta nigrirostris
Anorostoma alternans
Anorostoma alternans
Anorostoma cinereum
Anorostoma cinereum
Anorostoma jamesi
Anorostoma jamesi
Anorostoma maculatum
Anorostoma maculatum
Ant-assassin Chiselmouth
Cerotainiops abdominalis
Anthalia bulbosa
Anthalia bulbosa
Anthomyza oblonga
Anthomyza oblonga
Anthomyza shewelli
Anthomyza shewelli
Anthomyza silvatica
Anthomyza silvatica
Anthomyza variegata
Anthomyza variegata
Anthomyza vulgaris
Anthomyza vulgaris
Anthracite Bee-Fly
Anthrax anthrax
Anthrax albofasciatus
Anthrax albofasciatus
Anthrax artemesia
Anthrax artemesia
Anthrax atriplex
Anthrax atriplex
Anthrax cascadensis
Anthrax cascadensis
Anthrax daphne
Anthrax daphne
Anthrax georgicus
Anthrax georgicus
Anthrax larrea
Anthrax larrea
Anthrax nigriventris
Anthrax nigriventris
Anthrax pauper
Anthrax pauper
Anthrax pluto
Anthrax pluto
Anthrax varicolor
Anthrax varicolor
Anthrax vierecki
Anthrax vierecki
Anticheta melanosoma
Anticheta melanosoma
Antocha monticola
Antocha monticola
Antocha saxicola
Antocha saxicola
Apallates coxendix
Apallates coxendix
Apallates neocoxendix
Apallates neocoxendix
Apallates particeps
Apallates particeps
Apatolestes aitkeni
Apatolestes aitkeni
Apatolestes albipilosus
Apatolestes albipilosus
Apatolestes ater
Apatolestes ater
Apatolestes colei
Apatolestes colei
Apatolestes comastes
Apatolestes comastes
Apatolestes hinei
Apatolestes hinei
Apatolestes oritensis
Apatolestes oritensis
Apatolestes parkeri
Apatolestes parkeri
Apatolestes philipi
Apatolestes philipi
Apatolestes rossi
Apatolestes rossi
Apatolestes rugosus
Apatolestes rugosus
Apatolestes willistoni
Apatolestes willistoni
Apedilum elachistus
Apedilum elachistus
Aphid Midge
Aphidoletes aphidimyza
Aphoebantus borealis
Aphoebantus borealis
Aphoebantus conurus
Aphoebantus conurus
Aphoebantus desertus
Aphoebantus desertus
Aphoebantus fumosus
Aphoebantus fumosus
Aphoebantus interruptus
Aphoebantus interruptus
Aphoebantus mus
Aphoebantus mus
Aphoebantus rattus
Aphoebantus rattus
Aphoebantus scalaris
Aphoebantus scalaris
Aphoebantus transitus
Aphoebantus transitus
Aphria ocypterata
Aphria ocypterata
Apiloscatopse collaris
Apiloscatopse collaris
Apiloscatopse uncinata
Apiloscatopse uncinata
Apiocera barri
Apiocera barri
Apiocera chrysolasia
Apiocera chrysolasia
Apiocera haruspex
Apiocera haruspex
Apiocera macswaini
Apiocera macswaini
Apiocera mexicana
Apiocera mexicana
Apiocera painteri
Apiocera painteri
Aplomya theclarum
Aplomya theclarum
Apocephalus coquilletti
Apocephalus coquilletti