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)
Ichneumon centrator
Ichneumon centrator
Ichneumon chasmodops
Ichneumon chasmodops
Ichneumon clasma
Ichneumon clasma
Ichneumon devinctor
Ichneumon devinctor
Ichneumon dionymus
Ichneumon dionymus
Ichneumon faciens
Platylabops faciens
Ichneumon fuscifrons
Ichneumon fuscifrons
Ichneumon lacrymans
Ichneumon lacrymans
Ichneumon laetus
Ichneumon laetus
Ichneumon lewisii
Ichneumon lewisii
Ichneumon mendax
Ichneumon mendax
Ichneumon nigrovariegatus
Ichneumon nigrovariegatus
Ichneumon subdolus
Ichneumon subdolus
Ichneumon ultimus
Ichneumon ultimus
Idiolispa aestivalis
Idiolispa aestivalis
Idiolispa analis
Idiolispa analis
Imported Currantworm
Euura ribesii
Incense-cedar wood wasp
Syntexis libocedrii
Indiscriminate Cuckoo Bumble Bee
Bombus insularis
Inquiline Twig Ant
Pseudomyrmex leptosus
Iridescent Cockroach-hunter Wasp
Chlorion cyaneum
Irregular Spindle Gall Wasp
Andricus chrysolepidicola
Ischnus cinctipes
Ischnus cinctipes
Ischnus sparsus
Ischnus sparsus
Isdromas lycaenae
Isdromas lycaenae
Iseropus stercorator
Iseropus stercorator
Isodontia exornata
Isodontia exornata
Isodromus puncticeps
Isodromus puncticeps
Itoplectis viduata
Itoplectis viduata
Ixodiphagus hookeri
Ixodiphagus hookeri
Jaliscoa hunteri
Jaliscoa hunteri
Jamaican Digger Wasp
Sphex jamaicensis
Janus abbreviatus
Janus abbreviatus
Japanese Pantaloon Bee
Dasypoda japonica
Japanese Pavement Ant
Tetramorium tsushimae
Jesthura pyriformis
Jethsura pyriformis
Josephiella manana
Josephiella manana
Josephiella microcarpae
Josephiella microcarpae
Juniper Combhorn
Monoctenus juniperi
Kansas Squash Bee
Xenoglossa kansensis
Keeled Pine Spinner
Acantholyda posticalis
Kincaid's Cellophane Bee
Colletes kincaidii
Krombeinopyga aculeata
Krombeinopyga aculeata
Krombeinopyga pumila
Krombeinopyga pumila
Kulcania tomentosa
Kulcania tomentosa
Labena tinctipennis
Labena tinctipennis
Lacewing Parasitoid Wasp
Anacharis zealandica
Laelius pedatus
Laelius pedatus
Lagium atroviolaceum
Lagium atroviolaceum
Lagynodes acuticornis
Lagynodes acuticornis
Lalapa lusa
Lalapa lusa
Lamennaisia ambigua
Lamennaisia ambigua
Large Alder Sawfly
Cimbex connatus
Large Four-spotted Scoliid Wasp
Pygodasis quadrimaculata
Large Rose Sawfly
Arge pagana
Large Scabious Mining Bee
Andrena hattorfiana
Large Seed Harvesting Ant
Pogonomyrmex desertorum
Large Tiphia
Tiphia femorata
Large-headed Armoured-Resin bee
Heriades truncorum
Larra analis
Larra analis
Larropsis (Ancistromma) distincta
Larropsis distincta
Larropsis chilopsidis
Larropsis chilopsidis
Lasioglossum albipenne
Lasioglossum albipenne
Lasioglossum anomalum
Lasioglossum anomalum
Lasioglossum atwoodi
Lasioglossum atwoodi
Lasioglossum birkmanni
Lasioglossum birkmanni
Lasioglossum bruneri
Lasioglossum bruneri
Lasioglossum cattellae
Lasioglossum cattellae
Lasioglossum cinctipes
Lasioglossum cinctipes
Lasioglossum coeruleum
Lasioglossum coeruleum
Lasioglossum coreopsis
Lasioglossum coreopsis
Lasioglossum cressonii
Lasioglossum cressonii
Lasioglossum floridanum
Lasioglossum floridanum
Lasioglossum fuscipenne
Lasioglossum fuscipenne
Lasioglossum gotham
Lasioglossum gotham
Lasioglossum hitchensi
Lasioglossum hitchensi
Lasioglossum imbrex
Lasioglossum imbrex
Identification: unusually enlarged tegula ( ref. )
Lasioglossum katherineae
Lasioglossum katherineae
Lasioglossum kunzei
Lasioglossum kunzei
Lasioglossum laevissimum
Lasioglossum laevissimum
Lasioglossum leucocomum
Lasioglossum leucocomum
Lasioglossum lineatulum
Lasioglossum lineatulum
Lasioglossum lionotum
Lasioglossum lionotum
Lasioglossum lustrans
Lasioglossum lustrans
Lasioglossum mellipes
Lasioglossum mellipes
Lasioglossum mesillense
Lasioglossum mesillense
Lasioglossum michiganense
Lasioglossum michiganense
Lasioglossum nelumbonis
Lasioglossum nelumbonis
Lasioglossum nigroviride
Lasioglossum nigroviride
Lasioglossum oblongum
Lasioglossum oblongum
Lasioglossum obscurum
Lasioglossum obscurum
Lasioglossum olympiae
Lasioglossum olympiae
Lasioglossum pacificum
Lasioglossum pacificum
Lasioglossum pectinatum
Lasioglossum pectinatum
Lasioglossum pectorale
Lasioglossum pectorale
Lasioglossum pectoraloides
Lasioglossum pectoraloides
Lasioglossum perpunctatum
Lasioglossum perpunctatum
Lasioglossum petrellum
Lasioglossum petrellum
Lasioglossum pictum
Lasioglossum pictum
Lasioglossum planatum
Lasioglossum planatum