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)
Southern Yellowjacket
Vespula squamosa
Spalangia cameroni
Spalangia cameroni
Spalangia drosophilae
Spalangia drosophilae
Spathius elegans
Spathius elegans
Sphacophilus apios
Sphacophilus apios
Sphacophilus nigriceps
Sphacophilus nigriceps
Sphaeropthalma amphion
Sphaeropthalma amphion
Sphaeropthalma arota
Sphaeropthalma arota
Sphaeropthalma auripilis
Sphaeropthalma auripilis
Sphaeropthalma blakeii
Sphaeropthalma blakeii
Sphaeropthalma boweri
Sphaeropthalma boweri
Sphaeropthalma coaequalis
Sphaeropthalma coaequalis
Sphaeropthalma difficilis
Sphaeropthalma difficilis
Sphaeropthalma edwardsii
Sphaeropthalma edwardsii
Sphaeropthalma facilis
Sphaeropthalma facilis
Sphaeropthalma helicaon
Sphaeropthalma helicaon
Sphaeropthalma imperialis
Sphaeropthalma imperialis
Sphaeropthalma luiseno
Sphaeropthalma luiseno
Sphaeropthalma macswaini
Sphaeropthalma macswaini
Sphaeropthalma marpesia
Sphaeropthalma marpesia
Sphaeropthalma megagnathos
Sphaeropthalma megagnathos
Sphaeropthalma mendica
Sphaeropthalma mendica
Sphaeropthalma orestes
Sphaeropthalma orestes
Sphaeropthalma pallida
Sphaeropthalma pallida
Sphaeropthalma parapenalis
Sphaeropthalma parapenalis
Sphaeropthalma pateli
Sphaeropthalma pateli
Sphaeropthalma pensylvanica
Sphaeropthalma pensylvanica
Sphaeropthalma triangularis
Sphaeropthalma triangularis
Sphaeropthalma unicolor
Sphaeropthalma unicolor
Sphaeropthalma uvaldella
Sphaeropthalma uvaldella
Sphecodes aroniae
Sphecodes aroniae
Sphecodes johnsonii
Sphecodes johnsonii
Sphecodes solonis
Sphecodes solonis
Sphecodosoma dicksoni
Sphecodosoma dicksoni
Sphelodon phoxopteridis
Sphelodon phoxopteridis
Sphex tepanecus
Sphex tepanecus
Spider Wasp
Auplopus mellipes
Spider Wasp
Enytpus unifasciatus
Spilomena alboclypeata
Spilomena alboclypeata
Spilomena occidentalis
Spilomena occidentalis
Spilopteron franclemonti
Spilopteron franclemonti
Spilopteron occiputale
Spilopteron occiputale
Spilopteron vicinum
Spilopteron vicinum
Spine-shouldered Cellophane Bee
Colletes simulans
Spiny Ash Sawfly
Eupareophora parca
Spiny Leaf Gall Wasp
Diplolepis polita
Spring Tiphiid Wasp
Tiphia vernalis
Spruce Webspinning Sawfly
Cephalcia fascipennis
Spudaeus scaber
Spudaeus scaber
Steel-blue Cricket Hunter
Chlorion aerarium
Steely-blue Woodwasp
Sirex juvencus
Stelis australis
Stelis australis
Stelis coarctatus
Stelis coarctatus
Stelis diversicolor
Stelis diversicolor
Stelis interrupta
Stelis interrupta
Stelis louisae
Stelis louisae
Stelis melanotricha
Stelis melanotricha
Stelis perpulchra
Stelis perpulchra
Stelis rudbeckiarum
Stelis rudbeckiarum
Stelis texana
Stelis texana
Stenamma brevicorne
Stenamma brevicorne
Stenamma californicum
Stenamma californicum
Stenamma chiricahua
Stenamma chiricahua
Stenamma diecki
Stenamma diecki
Stenamma foveolocephalum
Stenamma foveolocephalum
Stenamma huachucanum
Stenamma huachucanum
Stenamma impar
Stenamma impar
Stenamma meridionale
Stenamma meridionale
Stenamma punctatoventre
Stenamma punctatoventre
Stenamma snellingi
Stenamma snellingi
Stenichneumon culpator
Stenichneumon culpator
Steniolia elegans
Steniolia elegans
Steniolia eremica
Steniolia eremica
Steniolia obliqua
Steniolia obliqua
Steniolia scolopacea
Steniolia scolopacea
Stenobarichneumon pergracilis
Stenobarichneumon pergracilis
Stenobarichneumon pygmaeops
Stenobarichneumon pygmaeops
Stenobarichneumon saundersii
Stenobarichneumon saundersii
Stenodynerus ammonia
Stenodynerus ammonia
Stenodynerus anormis
Stenodynerus anormis
Stenodynerus blandoides
Stenodynerus blandoides
Stenodynerus blandus
Stenodynerus blandus
Stenodynerus blepharus
Stenodynerus blepharus
Stenodynerus fundatiformis
Stenodynerus fundatiformis
Stenodynerus histrionalis
Stenodynerus histrionalis
Stenodynerus kennicottianus
Stenodynerus kennicottianus
Stenodynerus krombeini
Stenodynerus krombeini
Stenodynerus lineatifrons
Stenodynerus lineatifrons
Stenodynerus lucidus
Stenodynerus lucidus
Stenodynerus microstictus
Stenodynerus microstictus
Stenodynerus ochrogonius
Stenodynerus ochrogonius
Stenodynerus oculeus
Stenodynerus oculeus
Stenodynerus percampanulatus
Stenodynerus percampanulatus
Stenodynerus propinquus
Stenodynerus propinquus
Stenodynerus pulvinatus
Stenodynerus pulvinatus
Sterictiphora cruenta
Sterictiphora cruenta
Sterictiphora serotina
Sterictiphora serotina
Stethantyx nearctica
Stethantyx nearctica
Stictiella emarginata
Stictiella emarginata
Stictiella formosa
Stictiella formosa