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62 spiny crawler mayflies species
Ephemerella invaria
Ephemerella subvaria
Ephemerella dorothea
Timpanoga hecuba
Drunella grandis
Drunella flavilinea
Ephemerella needhami
Ephemerella excrucians
Drunella coloradensis
Eurylophella funeralis
Eurylophella enoensis
Drunella cornuta
Drunella cornutella
Serratella serratoides
Serratella serrata
Serratella levis
Teloganopsis deficiens
Serratella frisoni
Serratella micheneri
Drunella spinifera
Caudatella hystrix
Drunella tuberculata
Drunella pelosa
Drunella lata
Caudatella heterocaudata
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