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)
Bee Fly -Anthrax sp.
Anthrax aterrimus
Bee Fly -Lordotus sp.
Lordotus diplasus or diversus
Bee Fly -P. californicus
Poecilanthrax californicus
Bee Fly -Systoechus vulgaris
Systoechus vulgaris
Bee Fly -Thyridanthrax sp.
Thyridanthrax melanopterus
Bee Killer
Mallorphora leschenaulti
Bee Louse
Braula coeca
Bee-like Robber Fly
Laphria canis complex
Belvosia canadensis
Belvosia canadensis
Belvosia semiflava
Belvosia semiflava
Belvosia townsendi
Belvosia townsendi
Beris luteipes
Beris luteipes
Berkshiria albistylum
Berkshiria albistylum
Bermudagrass Stem Maggot
Atherigona reversura
Beskia aelops
Beskia aelops
Besseria anthophila
Besseria anthophila
Besseria atra
Besseria atra
Bezzia bivittata
Bezzia bivittata
Bezzia fascispinosa
Bezzia fascispinosa
Bezzia nobilis
Bezzia nobilis
Bezzia perplexa
Bezzia perplexa
Bezzia varicolor
Bezzia varicolor
Bibio abbreviatus
Bibio abbreviatus
Bibio alexanderi
Bibio alexanderi
Bibio alienus
Bibio alienus
Bibio atripilosus
Bibio atripilosus
Bibio brunnipes
Bibio brunnipes
Bibio necotus
Bibio necotus
Bibio rufipes
Bibio rufipes
Bibio rufithorax
Bibio rufithorax
Bibio siebkei
Bibio siebkei
Bibio slossonae
Bibio slossonae
Bibio xanthopus
Bibio xanthopus
Bibiocephala grandis
Bibiocephala grandis
Bibiodes aestiva
Bibiodes aestiva
Identification: Male with swollen hind tarsomeres.
Bibiodes halteralis
Bibiodes halteralis
Bicolored Bandit
Cophura sculleni
Billaea sibleyi
Billaea sibleyi
Bitheca boleta
Bitheca boleta
Bitheca steyskali
Bitheca steyskali
Black Banded Bee Fly
Hemipenthes morio
Black Bee Killer
Mallophora atra
Black Blow Fly
Phormia regina
Black Bog Fly
Parhelophilus porcus
Black Fig Fly
Silba adipata
Black Gnat
Bibio johannis
Black Horse Fly
Tabanus atratus
Black Locust Gall Midge
Obolodiplosis robiniae
Black Onion Fly
Tritoxa flexa
Black Pasture Fly
Hydrellia tritici
Black Soldier Fly
Hermetia illucens
Black-backed Lampria
Lampria bicolor
Black-bellied Aphideater
Eupeodes confertus
Black-booted Micropanther
Atomosia rufipes
Black-dented Leafwalker
Chalcosyrphus aristatus
Black-footed Prospector
Ablautus schlingeri
Black-horned Gem Fly
Microchrysa polita
Black-legged Tiger Fly
Ceraturgus nigripes
Black-tufted Bandit
Cyrtopogon aurifex
Blackbeard Micropanther
Atomosia melanopogon
Blackwing Rottingfly
Suillia picta
Blaesodiplosis crataegifolia
Blaesodiplosis crataegifolia
Blera analis
Blera analis
Blera armillata
Blera armillata
Blera badia
Blera badia
Blera confusa
Blera confusa
Blera flukei
Blera flukei
Blera humeralis
Blera humeralis
Blera nigra
Blera nigra
Blera robusta
Blera robusta
Blera scitula
Blera scitula
Blera umbratilis
Blera umbratilis
Blossom Fly
Dilophus nigrostigma
Blue Blow Fly
Calliphora vincina
Blueberry Fruit Fly
Rhagoletis mendax
Blythe Bandit
Cophura vandykei
Boettcheria bisetosa
Boettcheria bisetosa
Boettcheria latisterna
Boettcheria latisterna
Boletina obscura
Boletina obscura
Bomber Fly
Heterostylum robustum
Bombylius albicapillus
Bombylius albicapillus
Bombylius ater
Bombylius ater
Bombylius atriceps
Bombylius atriceps
Bombylius aurifer
Bombylius aurifer
Bombylius breviabdominalis
Bombylius breviabdominalis
Bombylius comanche
Bombylius comanche
Bombylius coquilletti
Bombylius coquilletti
Bombylius curtirhynchus
Bombylius curtirhynchus
Bombylius diegoensis
Bombylius diegoensis
Bombylius fraudulentus
Bombylius fraudulentus
Bombylius fulvibasoides
Bombylius fulvibasoides
Bombylius helvus
Bombylius helvus
Bombylius heximaculatus
Bombylius heximaculatus
Bombylius iphiculus
Bombylius iphiculus
Bombylius lancifer
Bombylius lancifer
Bombylius mohavensis
Bombylius mohavensis
Bombylius pulcher
Bombylius pulcher
Bombylius texanus
Bombylius texanus
Bombylius validus
Bombylius validus
Borboropsis puberula
Borboropsis puberula