Flies
Order Hymenoptera
The Flies (Order Hymenoptera) includes 5,194 species across 102 families and 1,491 genera in our directory.
About Flies
Hymenoptera includes over 150,000 described species of ants, bees, wasps, and sawflies. Earth harbors approximately 20 quadrillion (20×10^15) ants, with a combined biomass of ~12 megatons of dry carbon - exceeding the combined biomass of all wild birds and mammals (PNAS, 2022).
Economic Impact
Pollinators contribute $235-577 billion worth of annual global food production (FAO). In the U.S., bee pollination alone benefits crops valued at $18 billion annually, and honey bees are responsible for $5.4 billion in agricultural productivity. Between April 2023-2024, 55.1% of managed honey bee colonies were lost. The U.S. bee population dropped from 5 million to 2.5 million.
Ecological Role
About 35% of the world's food crops depend on animal pollinators. The chocolate industry, valued at over $100 billion, depends on pollinating flies and midges. Ants are the dominant soil engineers in most terrestrial ecosystems, turning more soil than earthworms in many habitats.
Families in Hymenoptera (102)
Species in Hymenoptera (5,194)
Eucera actuosa
Eucera actuosa
Eucera amsinckiae
Eucera amsinckiae
Eucera frater
Eucera frater
Eucera fulvitarsis
Eucera fulvitarsis
Eucera hamata
Eucera hamata
Eucera lutziana
Eucera lutziana
Eucera pagosana
Eucera pagosana
Eucerceris bitruncata
Eucerceris bitruncata
Eucerceris canaliculata
Eucerceris canaliculata
Eucerceris cressoni
Eucerceris cressoni
Eucerceris flavocincta
Eucerceris flavocincta
Eucerceris montana
Eucerceris montana
Eucerceris provancheri
Eucerceris provancheri
Eucerceris rubripes
Eucerceris rubripes
Eucerceris superba
Eucerceris superba
Eucerceris tricolor
Eucerceris tricolor
Eucerceris vittatifrons
Eucerceris vittatifrons
Euceroptres primus
Euceroptres primus
Euderus albitarsis
Euderus albitarsis
Eulophus anomocerus
Eulophus anomocerus
Eumenes mediterraneus
Eumenes mediterraneus
Eumenes smithii
Eumenes smithii
Eumenes verticalis
Eumenes verticalis
Euodynerus alvarado
Euodynerus alvarado
Euodynerus annectens
Euodynerus annectens
Euodynerus apopkensis
Euodynerus apopkensis
Euodynerus auranus
Euodynerus auranus
Euodynerus bidens
Euodynerus bidens
Euodynerus blakeanus
Euodynerus blakeanus
Euodynerus boscii
Euodynerus boscii
Euodynerus castigatus
Euodynerus castigatus
Euodynerus exoglyphus
Euodynerus exoglyphus
Euodynerus foraminatus
Euodynerus foraminatus
Euodynerus guerrero
Euodynerus guerrero
Euodynerus planitarsis
Euodynerus planitarsis
Euodynerus pratensis
Euodynerus pratensis
Euodynerus tempiferus
Euodynerus tempiferus
Euodynerus undescribed species F
Euodynerus undescribed-f
Euodynerus undescribed species G
Euodynerus undescribed-g
Euparagia desertorum
Euparagia desertorum
Eupelmus cushmani
Eupelmus cushmani
Eupelmus cyaniceps
Eupelmus cyaniceps
Eupelmus cynipidis
Eupelmus cynipidis
Eupelmus epicaste
Eupelmus epicaste
Eupelmus meteori
Eupelmus meteori
Eupelmus vesicularis
Eupelmus vesicularis
Euperilampus krombeini
Euperilampus krombeini
Euperilampus triangularis
Euperilampus triangularis
Euphorb Mini-Fairy Bee
Perdita minima
Euplectrus comstockii
Euplectrus comstockii
Euplectrus platyhypenae
Euplectrus platyhypenae
European Alder Leaf-mining Sawfly
Fenusa dohrnii
European Apple Sawfly
Hoplocampa testudinea
European Spruce Sawfly
Gilpinia hercyniae
European Wheat Stem Sawfly
Cephus pygmaeus
European Wheat Stem Sawfly
Cephus pygmeus
European Woodwasp
Sirex noctilio
European Wool-carder Bee
Anthidium manicatum
European Yellow Loosestrife Bee
Macropis europaea
Eurytoma discordans
Eurytoma discordans
Eurytoma gigantea
Eurytoma gigantea
Eurytoma hecale
Eurytoma hecale
Eurytoma longavena
Eurytoma longavena
Eurytoma obtusiventris
Eurytoma obtusiventris
Eusapyga nigripes
Eusapyga nigripes
Eusapyga rubripes
Eusapyga rubripes
Eusapyga verticalis
Eusapyga verticalis
Eusterinx rufula
Eusterinx rufula
Eutanyacra consignata
Eutanyacra consignata
Eutanyacra improvisa
Eutanyacra improvisa
Eutanyacra melanotarsis
Eutanyacra melanotarsis
Eutanyacra suturalis
Eutanyacra suturalis
Eutanyacra vilissima
Eutanyacra vilissima
Eutomostethus ephippium
Eutomostethus ephippium
Eutomostethus luteiventris
Eutomostethus luteiventris
Eutrichosoma mirabile
Eutrichosoma mirabile
Euura appalachia
Euura appalachia
Euura aurantiaca
Euura aurantiaca
Euura calais
Euura calais
Euura corniger
Euura corniger
Euura dimmockii
Euura dimmockii
Euura extensicornis
Euura extensicornis
Euura iridescens
Euura iridescens
Euura leavitti
Euura leavitti
Euura lipovskyi
Euura lipovskyi
damages azaleas in much of the Midwest & Northeast
Euura oligospila
Euura oligospila
Euura poecilonota
Euura poecilonota
Euura robusta
Euura robusta
Euura salicisodoratus
Euura salicisodoratus
Evagetes hyacinthinus
Evagetes hyacinthinus
Evagetes ingenuus
Evagetes ingenuus
Evagetes mohave
Evagetes mohave
Evagetes padrinus
Evagetes padrinus
Evagetes parvus
Evagetes parvus
Evaniella californica
Evaniella californica
Exallonyx grandis
Exallonyx grandis
Exallonyx obsoletus
Exallonyx obsoletus
Executioner Paper Wasp
Polistes carnifex
Exenterus amictorius
Exenterus amictorius
Exenterus canadensis
Exenterus canadensis