Endopterygota is the group of insects which go through complete metamorphosis. The orders in bold are addressed on this page. - Endopterygota
- Neuropterida
- Megaloptera - Dobsonflies, Fishflies, Alderflies
- Neuroptera - Lacewings, Ant Lions
- Raphidoptera - Snakeflies
- Mecoptera - Scorpionflies, Hangingflies
- Siphonaptera - Fleas
- Diptera - Flies, Mosquitos (30-X)
- Hymenoptera - Ants, Bees, Wasps (30-XI)
- Strepsiptera - Twisted-Wing Parasites (30-XI)
- Amphiesmenoptera (30-XII)
- Trichoptera - Caddisflies
- Lepidoptera - Butterflies, Moths
- Coleoptera - Beetles (30-XIII)
Megaloptera is the order of dobsonflies, fishflies and alderflies. As of 2024, 33 species of Megaloptera have been observed in iNaturalist in the US and 209 throughout the world. There are just two families in this order. - FAMILY CORYDALIDAE
- Eastern Dobsonfly (Corydalus cornutus) - most iNat observations in the US for Megaloptera - NOAH
- FAMILY SIALIDAE
- Alderfly (Sialis californica)
Neuroptera is the order of lacewings and ant lions. As of 2024, 214 species of Neuroptera have been observed in iNaturalist in the US and 1,219 throughout the world. - SUBORDER HEMEROBIIFORMIA
- FAMILY CHRYSOPIDAE
- Lacewing (Chrysopa oculata) - most iNat observations in the US for Neuroptera
- Common Green Lacewing (Chrysoperla sp.) - Perry Lake, KS
- FAMILY HEMEROBIIDAE
- Brown Lacewing (Micromus posticus) - Perry Lake, KS
- SUBORDER MYRMELEONTIFORMIA
- SUBORDER NEVRORTHIFORMIA
Raphidioptera is the order of snakeflies. As of 2024, 12 species of Raphidioptera have been observed in iNaturalist in the US and 49 throughout the world. - FAMILY RAPHIDIIDAE
- Snakefly (Agulla bicolor) - most iNat observations in the US for Raphidioptera
Mecoptera is the order of scorpionflies. As of 2024, 64 species of Mecoptera have been observed in iNaturalist in the US and 311 throughout the world. There are nine families of scorpionflies. - FAMILY PANORPIDAE
- Nuptial Scorpionfly (Panorpa nuptialis) - most iNat observations in the US for Mecoptera
Siphonaptera is the order of fleas. As of 2024, 18 species of Siphonaptera have been observed in iNaturalist in the US and 41 throughout the world. - SUBORDER CERATOPHYLLOMORPHA
- SUBORDER HYSTRICHOPSYLLOMORPHA
- SUBORDER PULICOMORPHA
- SUPERFAMILY COPTOPSYLLOIDEA
- SUPERFAMILY MALACOPSYLLOIDEA
- SUPERFAMILY PULICOIDEA
- FAMILY PULICIDAE
- Dog & Cat Fleas (Ctenocephalides) - most iNat observations in the US for Siphonaptera
- Human Flea (Pulex irritans)
- Oriental Rat Flea (Xenopsylla cheopsis) - fleas that spread the plague
- SUPERFAMILY VERMIPSYLLOIDEA
- SUBORDER PYGIOPSYLLOMORPHA
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