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)
Western Yellowjacket
Vespula pensylvanica
White Oak Club Gall Wasp
Andricus clavula
White-footed Ant
Technomyrmex difficilis
White-lipped Blood Bee
Sphecodes albilabris
Willow Redgall Sawfly
Euura proxima
Willow Sawfly
Cimbex luteus
Wilmatte's Cellophane Bee
Colletes wilmattae
Winnow Ant
Aphaenogaster rudis
Woldstedtius flavolineatus
Woldstedtius flavolineatus
Wood Stem-sawfly
Cephus nigrinus
Woolly Gall Wasp
Heteroecus dasydactyli
Woolly Wall Bee
Megachile lanata
Woollybear Gall Wasp
Atrusca trimaculosa
Wroughtonia frigida
Wroughtonia frigida
Wroughtonia ligator
Wroughtonia ligator
Wroughtonia necydalidis
Wroughtonia necydalidis
Xanthocampsomeris completa
Xanthocampsomeris completa
Xanthocampsomeris fulvohirta
Xanthocampsomeris fulvohirta
Xanthocampsomeris hesterae
Xanthocampsomeris hesterae
Xanthocampsomeris limosa
Xanthocampsomeris limosa
Xanthoteras eburneum
Xanthoteras eburneum
Xanthoteras politum
Xanthoteras politum
Xenoglossa angustior
Xenoglossa angustior
Xenoglossodes albatus
Xenoglossodes albatus
Xenoglossodes davidsoni
Xenoglossodes davidsoni
Xenoglossodes eriocarpi
Xenoglossodes eriocarpi
Xenoglossodes lippiae
Xenoglossodes lippiae
Xenoglossodes pomonae
Xenoglossodes pomonae
Xenomyrmex floridanus
Xenomyrmex floridanus
Xeralictus timberlakei
Xeralictus timberlakei
Xeris indecisus
Xeris indecisus
Xeris morrisoni
Xeris morrisoni
Xerochares expulsus
Xerochares expulsus
Xerogorytes anaetis
Xerogorytes anaetis
Xiphosomella dubia
Xiphosomella dubia
Xiphydria abdominalis
Xiphydria abdominalis
Xiphydria canadensis
Xiphydria canadensis
Xiphydria prolongata
Xiphydria prolongata
Xiphydriophagus meyerinckii
Xiphydriophagus meyerinckii
Xorides albopictus
Xorides albopictus
Xorides calidus
Xorides calidus
Xorides californicus
Xorides californicus
Xorides cincticornis
Xorides cincticornis
Xorides peniculus
Xorides peniculus
Xylocopa appendiculata
Xylocopa appendiculata
Xylocopa strandi
Xylocopa strandi
Xysma ceanothae
Xysma ceanothae
Yelicones delicatus
Yelicones delicatus
Yelicones nigromarginatus
Yelicones nigromarginatus
Yellow Paper Wasp
Polistes flavus
Yellow-collared Masked Bee
Hylaeus euxanthus
Yellow-faced Bumble Bee
Bombus vosnesenskii
Yellow-legged Hornet
Vespa velutina
Yellow-sided Clover-sawfly
Tenthredo notha
Yellow-spotted Macrophya
Macrophya montana
Yerba Santa Masked Bee
Hylaeus calvus
Yogi Carpenter Ant
Camponotus yogi
Zadiprion rohweri
Zadiprion rohweri
Zaeucoila robusta
Zaeucoila robusta
Zaglyptus pictilis
Zaglyptus pictilis
Zaglyptus varipes
Zaglyptus varipes
Zagrammosoma americanum
Zagrammosoma americanum
Zagrammosoma centrolineatum
Zagrammosoma centrolineatum
Zagrammosoma flavolineatum
Zagrammosoma flavolineatum
Zagrammosoma interlineatum
Zagrammosoma interlineatum
Zagrammosoma multilineatum
Zagrammosoma multilineatum
Zagrammosoma trifurcatum
Zagrammosoma trifurcatum
Zagrammosoma velerii
Zagrammosoma velerii
Zaischnopsis coenotea
Zaischnopsis coenotea
Zanysson plesius
Zanysson plesius
Zanysson texanus
Zanysson texanus
Zaomma lambinus
Zaomma lambinus
Zapatella davisae
Zapatella davisae
Zapatella quercusmedullae
Zapatella quercusmedullae
Zaschizonyx montana
Zaschizonyx montana
Zatypota alborhombarta
Zatypota alborhombarta
Zatypota crassipes
Zatypota crassipes
Zele albiditarsus
Zele albiditarsus
Zelomorpha arizonensis
Zelomorpha arizonensis
Zeta argillaceum
Zeta argillaceum
Zethus guerreroi
Zethus guerreroi
Zethus montezuma
Zethus montezuma
Zethus slossonae
Zethus slossonae
Zethus spinipes
Zethus spinipes
Zikanapis elegans
Zikanapis elegans
Zopheroteras cuneatum
Zopheroteras cuneatum
Zynzus bicolor
Zynzus bicolor
Zynzus magnus
Zynzus magnus
alder wood wasp
Xiphydria camelus
citrus gall wasp
Bruchophagus fellis
grey field ant
Formica aerata
maple wood wasp
Xiphydria longicollis
pistachio seed chalcid
Megastigmus pistaciae
roseroot gall wasp
Diplolepis radicum