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)
California Crown Wasp
Megischus californicus
California Harvester Ant
Pogonomyrmex californicus
California Horntail Wasp
Urocerus californicus
Caliroa liturata
Caliroa liturata
Caliroa lunata
Caliroa lunata
Caliroa nyssae
Caliroa nyssae
Caliroa obsoleta
Caliroa obsoleta
Calliopsis andreniformis
Calliopsis andreniformis
Calliopsis anomoptera
Calliopsis anomoptera
Calliopsis barbata
Calliopsis barbata
Calliopsis callops
Calliopsis callops
Calliopsis filiorum
Calliopsis filiorum
Calliopsis fracta
Calliopsis fracta
Calliopsis helianthi
Calliopsis helianthi
Calliopsis hesperia
Calliopsis hesperia
Calliopsis hondurasica
Calliopsis hondurasica
Calliopsis linsleyi
Calliopsis linsleyi
Calliopsis nebraskensis
Calliopsis nebraskensis
Calliopsis puellae
Calliopsis puellae
Calliopsis pugionis
Calliopsis pugionis
Calliopsis rhodophila
Calliopsis rhodophila
Calliopsis scitula
Calliopsis scitula
Calliopsis scutellaris
Calliopsis scutellaris
Calliopsis subalpina
Calliopsis subalpina
Calliopsis zebrata
Calliopsis zebrata
Callirhytis balanacea
Callirhytis balanacea
Callirhytis balanopsis
Callirhytis balanopsis
Callirhytis carmelensis
Callirhytis carmelensis
Callirhytis ellipsoida
Callirhytis ellipsoida
Callirhytis elliptica
Callirhytis elliptica
Callirhytis gallaestriatae
Callirhytis gallaestriatae
Callirhytis glandulus
Callirhytis glandulus
Callirhytis glomerosa
Callirhytis glomerosa
Callirhytis juvenca
Callirhytis juvenca
Callirhytis myrtifoliae
Callirhytis myrtifoliae
Callirhytis pedunculata
Callirhytis pedunculata
Callirhytis perditor
Callirhytis perditor
Callirhytis pigra
Callirhytis pigra
Callirhytis quercusfutilis
Callirhytis quercusfutilis
Callirhytis quercusventricosa
Callirhytis quercusventricosa
Callirhytis rugulosa
Callirhytis rugulosa
Callirhytis tubicola
Callirhytis tubicola
Calliscelio rubiclavus
Calliscelio rubiclavus
Calopompilus albopilosus
Calopompilus albopilosus
Calopompilus deceptus
Calopompilus deceptus
Calopompilus feroculis
Calopompilus feroculis
Calopompilus fortis
Calopompilus fortis
Calopompilus maculipennis
Calopompilus maculipennis
Calopompilus pyrrhomelas
Calopompilus pyrrhomelas
Calopompilus validus
Calopompilus validus
Campoletis sonorensis
Campoletis sonorensis
Camponotus absquatulator
Camponotus absquatulator
Camponotus clarithorax
Camponotus clarithorax
Camponotus decipiens
Camponotus decipiens
Camponotus dumetorum
Camponotus dumetorum
Camponotus festinatus
Camponotus festinatus
Camponotus fragilis
Camponotus fragilis
Camponotus johnsoni
Camponotus johnsoni
Camponotus laevigatus
Camponotus laevigatus
Camponotus microps
Camponotus microps
Camponotus pennsylvanicusnr
Camponotus pennsylvanicusnr
Camponotus sansabeanus
Camponotus sansabeanus
Camponotus sayi
Camponotus sayi
Camponotus schaefferi
Camponotus schaefferi
Camponotus semitestaceus
Camponotus semitestaceus
Camponotus socius
Camponotus socius
Camponotus texanus
Camponotus texanus
Camponotus vafer
Camponotus vafer
Camponotus vicinus
Camponotus vicinus
Camponotus zonatus
Camponotus zonatus
Campoplex frustranae
Campoplex frustranae
Cardiocondyla emeryi
Cardiocondyla emeryi
Cardiocondyla mauritanica
Cardiocondyla mauritanica
Cardiocondyla minutior
Cardiocondyla minutior
Cardiocondyla obscurior
Cardiocondyla obscurior
Carebara longii
Carebara longii
Caribbean Cicada-killer Wasp
Sphecius hogardii
Catadelphops nasutus
Catadelphops nasutus
Catsear Gall Wasp
Phanacis hypochoeridis
Caulocampus acericaulis
Caulocampus acericaulis
Caupolicana electa
Caupolicana electa
Caupolicana ocellata
Caupolicana ocellata
Caupolicana yarrowi
Caupolicana yarrowi
Cemolobus ipomoeae
Cemolobus ipomoeae
Centris caesalpiniae
Centris caesalpiniae
Centris cockerelli
Centris cockerelli
Centris errans
Centris errans
Centris flavofasciata
Centris flavofasciata
Centris hoffmanseggiae
Centris hoffmanseggiae
Centris lanosa
Centris lanosa
Centris nitida
Centris nitida
Cephalcia frontalis
Cephalcia frontalis
Cephalcia fulviceps
Cephalcia fulviceps
Cephalcia semidea
Cephalcia semidea
Cephalodynerus deformiceps
Cephalodynerus deformiceps
Cephalodynerus russipes
Cephalodynerus russipes
Cephalodynerus unicornis
Cephalodynerus unicornis
Cephalotes varians
Cephalotes varians
Ceratina acantha
Ceratina acantha
Ceratina arizonensis
Ceratina arizonensis