The Ants, Bees, Wasps, Hornets & related (Hymenoptera) - Order
100,000–125,000 species
(Apocrita) - suborder
(Aculeata) - infraorder

(Siricidae)
- family

(Tenthredinidae)
- family
(Apoidea) - superfamily
The Cockroach Wasps
(Ampulicidae)
- family
The Mason Bees
(Andrenidae)
- family
Honey Bees
(Apidae)
- family

(Colletidae)
- family

(Crabronidae)
- family

(Dasypodaidae)
- family
The Sweat Bees
(Halictidae)
- family

(Heterogynaidae)
- family
The Leaf-Cutting Bees
(Megachilidae)
- family

(Meganomiidae)
- family

(Melittidae)
- family

(Stenotritidae)
- family
The Digger Wasps
(Sphecidae)
- family
(Chrysidoidea) - superfamily

(Bethylidae)
- family
The Cuckoo Wasps
(Chrysididae)
- family

(Dryinidae)
- family

(Embolemidae)
- family

(Plumariidae)
- family

(Sclerogibbidae)
- family

(Scolebythidae)
- family
(Vespoidea) - superfamily

(Bradynobaenidae)
- family
The Ants
(Formicidae)
- family
The Velvet Ants
(Mutillidae)
- family
The Spider Wasps
(Pompilidae)
- family

(Rhopalosomatidae)
- family

(Sapygidae)
- family

(Scoliidae)
- family

(Sierolomorphidae)
- family
(Parasitica) - infraorder
(Ceraphronoidea) - superfamily

(Ceraphronidae)
- family

(Megaspilidae)
- family
(Chalcidoidea) - superfamily
The Fig Wasps
(Agaonidae)
- family

(Aphelinidae)
- family
The Chalcid Wasps
(Chalcididae)
- family

(Encyrtidae)
- family

(Eucharitidae)
- family

(Eulophidae)
- family

(Eupelmidae)
- family
The Seed Chalcid Waps
(Eurytomidae)
- family

(Leucospidae)
- family
The Fairy Flies
(Mymaridae)
- family

(Ormyridae)
- family

(Perilampidae)
- family

(Pteromalidae)
- family

(Rotoitidae)
- family

(Signiphoridae)
- family

(Tanaostigmatidae)
- family

(Tetracampidae)
- family

(Torymidae)
- family

(Trichogrammatidae)
- family
(Cynipoidea) - superfamily

(Austrocynipidae)
- family
The Gall Wasps
(Cynipidae)
- family

(Figitidae)
- family

(Ibaliidae)
- family

(Liopteridae)
- family
(Evanioidea) - superfamily

(Evanioidea)
- family
The Ensign Wasps
(Evaniidae)
- family
Gasteruptiidae
()
- family
(Ichneumonoidea) - superfamily

(Braconidae)
- family
The Ichneumon Wasps
(Ichneumonidae)
- family
(Megalyroidea) - superfamily

(Megalyridae)
- family
(Mymarommatoidea) - superfamily

(Mymarommatidae)
- family
(Platygastroidea) - superfamily

(Platygastridae)
- family

(Scelionidae)
- family
(Proctotrupoidea) - superfamily

(Austroniidae)
- family

(Diapriidae)
- family

(Heloridae)
- family

(Maamingidae)
- family

(Monomachidae)
- family

(Pelecinidae)
- family

(Peradeniidae)
- family

(Proctorenyxidae)
- family

(Proctotrupidae)
- family

(Roproniidae)
- family

(Vanhorniidae)
- family
(Stephanoidea) - superfamily

(Stephanidae)
- family
(Trigonaloidea) - superfamily

(Trigonalidae)
- family
(Symphyta) - suborder
(Anaxyeloidea) superfamily

(Anaxyelidae)
- family
(Cephoidea) superfamily

(Cephidae)
- family
(Karatavitoidea) superfamily

()
- family

()
- family

()
- family

()
- family
(Orussoidea) superfamily

(Orussidae)
- family
(Pamphilioidea) superfamily

(Megalodontesidae)
- family

(Pamphiliidae)
- family
(Siricoidea) superfamily

(Siricidae)
- family
(Tenthredinoidea) superfamily

(Argidae)
- family

(Blasticotomidae)
- family

(Cimbicidae)
- family

(Diprionidae)
- family

(Pergidae)
- family

(Tenthredinidae)
- family
(Xiphydrioidea) superfamily

(Xiphydriidae)
- family
(Xyeloidea) superfamily

()
- family