Insect Orders
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PHYLUM
Annelida “Annelids”
CLASS
Hirudinea “Leeches”
ORDER
Rhynchobdellida
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FAMILY
Glossiphoniidae
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GENUS
Placobdella
Arthropoda “Arthropods”
CLASS
Collembola “Springtails”
ORDER
Poduromorpha
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FAMILY
Poduridae
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GENUS
Podura
Insecta “Insects”
ORDER
Coleoptera “Adult Beetles”
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FAMILY
Dryopidae
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GENUS
Helichus
Dytiscidae
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GENUS
Agabus
Copelatus
Elmidae
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GENUS
Ancyronyx variegatus
Dubiraphia
Macronychus glabratus
Microcylloepus
Optioservus
Stenelmis
Gyrinidae
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GENUS
Dineutus
Gyrinus
Haliplidae
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GENUS
Peltodytes
Hydrophilidae
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GENUS
Berosus
Tropisternus
Coleoptera “Larval Beetles”
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FAMILY
Dytiscidae
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GENUS
Agabus
Copelatus
Elmidae
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GENUS
Ancyronyx variegatus
Dubiraphia
Macronychus glabratus
Microcylloepus
Optioservus
Stenelmis
Gyrinidae
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GENUS
Dineutus
Gyrinus
Haliplidae
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GENUS
Peltodytes
Hydrophilidae
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GENUS
Berosus
Tropisternus
Psephenidae
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GENUS
Psephenus
Ptilodactylidae
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GENUS
Anchytarsus
Diptera “True Flies”
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FAMILY
Athericidae
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GENUS
Atherix
Blephariceridae
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GENUS
Blepharicera
Ceratopogonidae
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GENUS
Probezzia
Chironomidae
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GENUS
Chironomus
Diamesa
Orthocladius
Tanytarsus
Culicidae
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GENUS
Aedes
Dixidae
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GENUS
Dixa
Empididae
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GENUS
Hemerodromia
Ephydridae
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GENUS
Ephydridae
Limoniidae
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GENUS
Antocha
Hexatoma
Muscidae
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GENUS
Musca
Pediciidae
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GENUS
Dicranota
Psychodidae
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GENUS
Telmatoscopus
Ptychopteridae
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GENUS
Ptychoptera
Simuliidae
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GENUS
Prosimulium
Simulium
Stratiomyidae
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GENUS
Stratiomys
Syrphidae
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GENUS
Chrysogaster
Tipulidae
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GENUS
Tipula
Ephemeroptera “Mayflies”
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FAMILY
Ameletidae
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GENUS
Ameletus
Baetidae
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GENUS
Acentrella
Baetis
Heterocloeon
Baetiscidae
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GENUS
Baetisca
Caenidae
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GENUS
Caenis
Ephemerellidae
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GENUS
Attenella
Drunella
Ephemerella
Eurylophella
Serratella
Ephemeridae
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GENUS
Ephemera
Hexagenia
Heptageniidae
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GENUS
Epeorus
Heptagenia
Leucrocuta
Maccaffertium
Rhithrogena
Stenacron
Isonychiidae
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GENUS
Isonychia
Leptohyphidae
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GENUS
Tricorythodes
Leptophlebiidae
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GENUS
Habrophlebia
Leptophlebia
Paraleptophlebia
Metretopodidae
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GENUS
Siphloplecton
Polymitarcyidae
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GENUS
Ephoron
Potamanthidae
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GENUS
Anthopotamus
Siphlonuridae
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GENUS
Siphlonurus
Hemiptera “True Bugs”
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FAMILY
Belostomatidae
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GENUS
Belostoma
Corixidae
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GENUS
Hesperocorixa
Gerridae
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GENUS
Gerris
Naucoridae
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GENUS
Pelocoris
Nepidae
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GENUS
Ranatra
Notonectidae
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GENUS
Notonecta
Veliidae
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GENUS
Microvelia
Rhagovelia
Lepidoptera “Aquatic Caterpillars, Snout Moths”
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FAMILY
Crambidae
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GENUS
Parapoynx
Megaloptera “Alderflies, Dobsonflies, and Fishflies”
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FAMILY
Corydalidae
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GENUS
Nigronia
Sialidae
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GENUS
Sialis
Odonata “Dragonflies and Damselflies”
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FAMILY
Aeshnidae
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GENUS
Boyeria
Calopterygidae
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GENUS
Calopteryx
Coenagrionidae
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GENUS
Argia
Enallagma
Ischnura
Cordulegastridae
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GENUS
Cordulegaster
Corduliidae
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GENUS
Epitheca
Gomphidae
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GENUS
Lanthus
Ophiogomphus
Lestidae
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GENUS
Lestes
Libellulidae
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GENUS
Libellula
Plecoptera “Stoneflies”
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FAMILY
Capniidae
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GENUS
Allocapnia
Chloroperlidae
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GENUS
Alloperla
Leuctridae
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GENUS
Leuctra
Nemouridae
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GENUS
Amphinemura
Peltoperlidae
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GENUS
Tallaperla
Perlidae
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GENUS
Acroneuria
Agnetina
Neoperla
Paragnetina
Perlesta
Perlodidae
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GENUS
Clioperla
Isoperla
Remenus
Pteronarcyidae
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GENUS
Pteronarcys
Taeniopterygidae
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GENUS
Strophopteryx
Taeniopteryx
Trichoptera “Caddisflies”
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FAMILY
Apataniidae
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GENUS
Apatania
Brachycentridae
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GENUS
Brachycentrus
Micrasema
Calamoceratidae
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GENUS
Heteroplectron
Dipseudopsidae
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GENUS
Phylocentropus
Glossosomatidae
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GENUS
Glossosoma
Goeridae
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GENUS
Goera
Helicopsychidae
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GENUS
Helicopsyche
Hydropsychidae
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GENUS
Arctopsyche
Cheumatopsyche
Diplectrona
Hydropsyche
Macrostemum
Hydroptilidae
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GENUS
Hydroptila
Lepidostomatidae
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GENUS
Lepidostoma
Leptoceridae
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GENUS
Ceraclea
Nectopsyche
Oecetis
Triaenodes
Limnephilidae
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GENUS
Ironoquia
Platycentropus
Pycnopsyche
Molannidae
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GENUS
Molanna
Odontoceridae
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GENUS
Psilotreta
Philopotamidae
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GENUS
Chimarra
Dolophilodes
Phryganeidae
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GENUS
Ptilostomis
Polycentropodidae
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GENUS
Neureclipsis
Nyctiophylax
Psychomyiidae
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GENUS
Lype
Psychomyia
Rhyacophilidae
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GENUS
Rhyacophila
Sericostomatidae
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GENUS
Agarodes
Thremmatidae
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GENUS
Neophylax
Malacostraca “Malacostracans”
ORDER
Amphipoda “Amphipods, scuds, sideswimmers”
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FAMILY
Gammaridae
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GENUS
Gammarus
Decapoda “Decapods”
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FAMILY
Cambaridae
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GENUS
Isopoda “Isopods”
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FAMILY
Asellidae
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GENUS
Asellus
Mollusca “Mollusks”
CLASS
Bivalvia “Bivalves”
ORDER
Unionoida “Freshwater Mussels”
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FAMILY
Unionidae
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GENUS
Elliptio
Veneroida
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FAMILY
Cyrenidae
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GENUS
Corbicula
Sphaeriidae
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GENUS
Pisidium
order
Coleoptera
“Adult Beetles”
Coleoptera
“Larval Beetles”
Diptera
“True Flies”
Ephemeroptera
“Mayflies”
Hemiptera
“True Bugs”
Lepidoptera
“Aquatic Caterpillars, Snout Moths”
Megaloptera
“Alderflies, Dobsonflies, and Fishflies”
Odonata
“Dragonflies and Damselflies”
Plecoptera
“Stoneflies”
Trichoptera
“Caddisflies”
Diptera
family
Athericidae
“Watersnipe Flies”
Blephariceridae
“Net-winged Midges”
Ceratopogonidae
“Biting Midges, No-See-Ums, Punkies, Sand Flies”
Chironomidae
“Non-Biting Midges, Midges”
Culicidae
“Mosquitoes”
Dixidae
“Meniscus Midges”
Empididae
“Dance Flies”
Ephydridae
“Shore Flies”
Limoniidae
“Limoniid Crane Flies”
Muscidae
“House Flies”
Pediciidae
“Hairy-eyed Crane Flies”
Psychodidae
“Moth Flies”
Ptychopteridae
“Phantom Crane Flies”
Simuliidae
“Black Flies”
Stratiomyidae
“Soldier Flies”
Syrphidae
“Hover Flies”
Tipulidae
“Large Crane Flies”
Empididae
genus
Hemerodromia
“Dance Flies”
Genus Overview
No genus-level description defined.
Characteristics
POLLUTION TOLERANCE
Mid-Atlantic: 6 and higher
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Piercer / Predator
MOVEMENT
Burrower
Sprawler
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lotic-depositional
Lotic-erosional
iNaturalist
Diagnostic Characters
Order
Legs Absent
Family
1-4 Rounded Lobes on End of Abdomen
All Abdominal Segments with Hook-bearing Prolegs
NO IP
Head Capsule Not Sclerotized and Exposed
NO IP
Mouth Hooks Moving Vertically
Spiracles Absent
+ Expanded Character List
Order: Wings and wing pads absent. Eye spots sometimes visible, but compound eyes absent. Segmented legs absent, but sometimes fleshy prolegs present. Sometimes with distinct head, often without head or with head drawn deeply into thorax. Body flattened, cylindrical, or maggot-like.
Family: Not defined.
Genus: Not defined.