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Organism
  Animalia
      Arthropoda
             [Invertebrate]
            Insecta
                    Plecoptera
                          Perloidea
                            Chloroperlidae
                                   [Chloroperlidae/Perlodidae]
                                     Alaskaperla
                                             Alaskaperla ovibovis
                                     Alloperla
                                             Alloperla acadiana
                                             Alloperla aracoma
                                             Alloperla atlantica
                                             Alloperla banksi
                                             Alloperla biserrata
                                             Alloperla caddo
                                             Alloperla caudata
                                             Alloperla chandleri
                                             Alloperla chloris
                                             Alloperla concolor
                                             Alloperla delicata
                                             Alloperla fraterna
                                             Alloperla furcula
                                             Alloperla hamata
                                             Alloperla idei
                                             Alloperla imbecilla
                                             Alloperla leonarda
                                             Alloperla medveda
                                             Alloperla nanina
                                             Alloperla natchez
                                             Alloperla neglecta
                                             Alloperla ouachita
                                             Alloperla petasata
                                             Alloperla pilosa
                                             Alloperla prognoides
                                             Alloperla roberti
                                             Alloperla serrata
                                             Alloperla severa
                                             Alloperla usa
                                             Alloperla voinae
                                             Alloperla vostoki
                                     Bisancora
                                             Bisancora pastina
                                             Bisancora rutriformis
                              Chloroperlinae
                                Suwalliini
                                     Haploperla
                                             Haploperla brevis
                                             Haploperla chilnualna
                                             Haploperla chukcho
                                             Haploperla orpha
                                     Kathroperla
                                             Kathroperla perdita
                                             Kathroperla siskiyou
                                             Kathroperla takhoma
                                     Neaviperla
                                             Neaviperla forcipata
                                                   [Suwallia forcipata]
                                     Paraperla
                                             Paraperla frontalis
                                             Paraperla wilsoni
                              Paraperlinae
                                     Plumiperla
                                             Plumiperla diversa
                                             Plumiperla spinosa
                                     Rasvena
                                             Rasvena terna
                                     Sasquaperla
                                             Sasquaperla hoopa
                                     Suwallia
                                             Suwallia amoenacoleus
                                             Suwallia autumna
                                             Suwallia dubia
                                             Suwallia lineosa
                                             Suwallia marginata
                                             Suwallia pallidula
                                             Suwallia salish
                                             Suwallia shepardi
                                             Suwallia sierra
                                             Suwallia starki
                                             Suwallia sublimis
                                             Suwallia wardi
                                     Sweltsa
                                             Sweltsa adamantea
                                             Sweltsa albertensis
                                             Sweltsa borealis
                                             Sweltsa californica
                                             Sweltsa coloradensis
                                             Sweltsa continua
                                             Sweltsa cristata
                                             Sweltsa durfeei
                                             Sweltsa exquisita
                                             Sweltsa fidelis
                                             Sweltsa gaufini
                                             Sweltsa hoffmani
                                             Sweltsa holstonensis
                                             Sweltsa hondo
                                             Sweltsa lamba
                                             Sweltsa lateralis
                                             Sweltsa mediana
                                             Sweltsa naica
                                             Sweltsa occidens
                                             Sweltsa onkos
                                             Sweltsa oregonensis
                                             Sweltsa pacifica
                                             Sweltsa palearata
                                             Sweltsa pisteri
                                             Sweltsa pocahontas
                                             Sweltsa resima
                                             Sweltsa revelstoka
                                             Sweltsa salix
                                             Sweltsa tamalpa
                                             Sweltsa townesi
                                             Sweltsa umbonata
                                             Sweltsa urticae
                                             Sweltsa voshelli
                                     Triznaka
                                             Triznaka pintada
                                             Triznaka sheldoni
                                             Triznaka signata
                                             Triznaka wallowa
                                     Utaperla
                                             Utaperla gaspesiana
                                             Utaperla sopladora
                            Perlodidae
                                   [Chloroperlidae/Perlodidae]
                                     Arcynopteryx
                                           [Arcynopteryx/Skwala]
                                             Arcynopteryx dichroa
                                     Baumannella
                                             Baumannella alameda
                                     Calliperla
                                             Calliperla luctuosa
                                     Cascadoperla
                                             Cascadoperla trictura
                                     Chernokrilus
                                             Chernokrilus misnomus
                                     Clioperla
                                             Clioperla clio
                                     Cosumnoperla
                                             Cosumnoperla hypocrena
                                     Cultus
                                           [Cultus/Diploperla]
                                             Cultus aestivalis
                                             Cultus decisus
                                             Cultus pilatus
                                             Cultus tostonus
                                             Cultus verticalis
                                     Diploperla
                                           [Cultus/Diploperla]
                                             Diploperla duplicata
                                             Diploperla kanawholensis
                                             Diploperla morgani
                                             Diploperla robusta
                                     Diura
                                             Diura bicaudata
                                             Diura knowltoni
                                             Diura nanseni
                                     Frisonia
                                             Frisonia picticeps
                                     Helopicus
                                             Helopicus bogaloosa
                                             Helopicus nalatus
                                             Helopicus subvarians
                                     Hydroperla
                                             Hydroperla crosbyi
                                             Hydroperla fugitans
                                             Hydroperla phormidia
                                             Hydroperla rickeri
                                     Isogenoides
                                             Isogenoides colubrinus
                                             Isogenoides doratus
                                                   [Isogenoides krumholzi]
                                             Isogenoides elongatus
                                             Isogenoides frontalis
                                             Isogenoides hansoni
                                             Isogenoides olivaceus
                                             Isogenoides varians
                                             Isogenoides zionensis
                                     Isogenus
                                     Isoperla
                                             Isoperla acula
                                             Isoperla adunca
                                             Isoperla baumanni
                                             Isoperla bellona
                                             Isoperla bifurcata
                                             Isoperla bilineata
                                             Isoperla burksi
                                             Isoperla catawba
                                             Isoperla cherokee
                                             Isoperla chickamauga
                                             Isoperla citronella
                                             Isoperla conspicua
                                             Isoperla cotta
                                             Isoperla davisi
                                             Isoperla decepta
                                             Isoperla decolorata
                                             Isoperla denningi
                                             Isoperla dicala
                                             Isoperla distincta
                                             Isoperla emarginata
                                             Isoperla fauschi
                                             Isoperla francesca
                                             Isoperla frisoni
                                             Isoperla fulva
                                             Isoperla fusca
                                             Isoperla gibbsae
                                             Isoperla gravitans
                                             Isoperla holochlora
                                             Isoperla irregularis
                                             Isoperla jamesae
                                             Isoperla jewetti
                                                   [Isoperla jewetti/longiseta]
                                             Isoperla katmaiensis
                                             Isoperla kirchneri
                                             Isoperla lata
                                             Isoperla laucki
                                             Isoperla lenati
                                             Isoperla longiseta
                                                   [Isoperla jewetti/longiseta]
                                             Isoperla major
                                             Isoperla marlynia
                                             Isoperla marmorata
                                             Isoperla maxana
                                             Isoperla miwok
                                             Isoperla montana
                                             Isoperla mormona
                                             Isoperla myersi
                                             Isoperla namata
                                             Isoperla nana
                                             Isoperla nelsoni
                                                   [Isoperla smithi]
                                             Isoperla orata
                                             Isoperla ouachita
                                             Isoperla pauli
                                             Isoperla petersoni
                                             Isoperla phalerata
                                             Isoperla pinta
                                             Isoperla poffi
                                             Isoperla powhatan
                                             Isoperla pseudolata
                                             Isoperla pseudosimilis
                                             Isoperla quinquepunctata
                                             Isoperla rainiera
                                             Isoperla reesi
                                             Isoperla richardsoni
                                             Isoperla roguensis
                                                   [Isoperla karuk]
                                             Isoperla sagittata
                                             Isoperla sandbergi
                                             Isoperla signata
                                             Isoperla similis
                                             Isoperla siouan
                                             Isoperla slossonae
                                             Isoperla sobria
                                             Isoperla sordida
                                             Isoperla starki
                                             Isoperla stewarti
                                             Isoperla szczytkoi
                                             Isoperla tilasqua
                                             Isoperla transmarina
                                             Isoperla tutelo
                                             Isoperla yuchi
                                             Isoperla zuelligi
                                     Kogotus
                                             Kogotus modestus
                                             Kogotus nonus
                                     Malirekus
                                           [Malirekus/Yugus]
                                             Malirekus hastatus
                                             Malirekus iroquois
                                     Megarcys
                                             Megarcys irregularis
                                             Megarcys signata
                                             Megarcys subtruncata
                                             Megarcys watertoni
                                             Megarcys yosemite
                                     Oconoperla
                                             Oconoperla innubila
                                     Oroperla
                                             Oroperla barbara
                                     Osobenus
                                             Osobenus yakimae
                                     Perlinodes
                                             Perlinodes aureus
                                                   [Perlinodes aurea]
                              Perlodinae
                                Diploperlini
                                     Pictetiella
                                             Pictetiella expansa
                                     Remenus
                                             Remenus bilobatus
                                             Remenus duffieldi
                                             Remenus kirchneri
                                     Rickera
                                             Rickera sorpta
                                     Salmoperla
                                             Salmoperla sylvanica
                                     Setvena
                                             Setvena bradleyi
                                             Setvena tibialis
                                             Setvena wahkeena
                                     Skwala
                                           [Arcynopteryx/Skwala]
                                             Skwala americana
                                                   [Arcynopteryx parallela]
                                                   [Skwala parallela]
                                             Skwala compacta
                                                   [Arcynopteryx compacta]
                                             Skwala curvata
                                     Susulus
                                             Susulus venustus
                                     Yugus
                                           [Malirekus/Yugus]
                                             Yugus arinus
                                             Yugus bulbosus
                                             Yugus kirchneri
                                             Yugus kondratieffi