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)
Pine Sawfly
Diprion pini
Pipe Organ Mud Dauber
Trypoxylon politum
Pisonopsis triangularis
Pisonopsis triangularis
Pitch-black Collared Ant
Aphaenogaster picea
Plagiotrypes concinnus
Plagiotrypes concinnus
Plate Gall Wasp
Feron pattersonae
Platygaster munita
Platygaster munita
Platygaster rubi
Platygaster rubi
Platylabops pecki
Platylabops pecki
Platylabus berndi
Platylabus berndi
Platylabus clarus
Platylabus clarus
Platylabus opaculus
Platylabus opaculus
Platylabus ornatus
Platylabus ornatus
Pleistodontes imperialis
Pleistodontes imperialis
Plenoculus davisi
Plenoculus davisi
Pleolophus brachypterus
Pleolophus brachypterus
Pleolophus indistinctus
Pleolophus indistinctus
Pnigalio coloni
Pnigalio coloni
Pnigalio maculipes
Pnigalio maculipes
Pnigalio pallipes
Pnigalio pallipes
Pnigalio uroplatae
Pnigalio uroplatae
Podagrion crassiclava
Podagrion crassiclava
Podalonia luctuosa
Podalonia luctuosa
Podalonia melaena
Podalonia melaena
Podalonia robusta
Podalonia robusta
Podium krombeini
Podium krombeini
Podium luctuosum
Podium luctuosum
Pogonomyrmex colei
Pogonomyrmex colei
Pogonomyrmex huachucanus
Pogonomyrmex huachucanus
Pogonomyrmex imberbiculus
Pogonomyrmex imberbiculus
Pogonomyrmex salinus
Pogonomyrmex salinus
Pogonomyrmex subdentatus
Pogonomyrmex subdentatus
Pogonomyrmex subnitidus
Pogonomyrmex subnitidus
Pogonomyrmex tenuispinus
Pogonomyrmex tenuispinus
Poison Ivy Sawfly
Arge humeralis
Polar Bumble Bee
Bombus polaris
Polyaulon canadensis
Polyaulon canadensis
Polyaulon erythropa
Polyaulon erythropa
Polyaulon grandis
Polyaulon grandis
Polyblastus fulvilinealis
Polyblastus fulvilinealis
Polyblastus stenocentrus
Polyblastus stenocentrus
Polyblastus tibialis
Polyblastus tibialis
Polycyrtus neglectus
Polycyrtus neglectus
Polytribax contiguus
Polytribax contiguus
Polytribax pallescens
Polytribax pallescens
Ponera exotica
Ponera exotica
Ponera pennsylvanica
Ponera pennsylvanica
Poplar Sawfly
Cladius grandis
Porter's Wool-carder Bee
Anthidium porterae
Potter Wasp
Ancistrocerus antilope
Potter Wasp
Eumenes fraternus
Prairie Yellowjacket
Vespula atropilosa
Priocnemis cornica
Priocnemis cornica
Priocnemis germana
Priocnemis germana
Priocnemis hestia
Priocnemis hestia
Priocnemis minuscula
Priocnemis minuscula
Priocnemis nigripes
Priocnemis nigripes
Priocnemis notha
Priocnemis notha
Priocnemis oregona
Priocnemis oregona
Priocnemis scitula
Priocnemis scitula
Priocnessus apache
Priocnessus apache
Priocnessus coloradensis
Priocnessus coloradensis
Priocnessus nebulosus
Priocnessus nebulosus
Prionomitus tiliaris
Prionomitus tiliaris
Prionyx foxi
Prionyx foxi
Prionyx parkeri
Prionyx parkeri
Pristaulacus editus
Pristaulacus editus
Pristaulacus fasciatus
Pristaulacus fasciatus
Pristaulacus minor
Pristaulacus minor
Pristaulacus montanus
Pristaulacus montanus
Pristaulacus niger
Pristaulacus niger
Pristaulacus occidentalis
Pristaulacus occidentalis
Pristaulacus resutorivorus
Pristaulacus resutorivorus
Pristaulacus stigmaterus
Pristaulacus stigmaterus
Pristaulacus strangaliae
Pristaulacus strangaliae
Pristiphora abbreviata
Pristiphora abbreviata
Pristiphora banksi
Pristiphora banksi
Pristiphora bivittata
Pristiphora bivittata
Pristiphora chlorea
Pristiphora chlorea
Pristiphora cincta
Pristiphora cincta
Pristiphora lena
Pristiphora lena
Pristiphora mollis
Pristiphora mollis
Pristiphora serrula
Pristiphora serrula
Pristiphora siskiyouensis
Pristiphora siskiyouensis
Pristomerus baumhoferi
Pristomerus baumhoferi
Pristomerus euryptychiae
Pristomerus euryptychiae
Privet Sawfly
Macrophya punctumalbum
Probethylus callani
Probethylus callani
Proceratium compitale
Proceratium compitale
Proceratium crassicorne
Proceratium crassicorne
Proceratium croceum
Proceratium croceum
Proceratium mexicanum
Proceratium mexicanum
Proceratium silaceum
Proceratium silaceum
Proctotrupes caudatus
Proctotrupes caudatus
Proctotrupes gravidator
Proctotrupes gravidator
Proctotrupes pallidus
Proctotrupes pallidus
Proctotrupes terminalis
Proctotrupes terminalis
Profenusa alumna
Profenusa alumna
Prolatus artus
Prolatus artus
Promethes sulcator
Promethes sulcator