No genus-level description defined.
Southeast: 1.6 and higher
Upper Midwest: 4 and higher
Midwest: 3.2 and higher
Collector / Filterer
Widespread (east of the Rocky Mtns.)
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+ Expanded Character List
Order: Wings developing in wing pads. Mouthparts suitable for chewing. Gills present on tops and sides of abdomen. Segmented legs present. One tarsal claw per leg. Usually with 3 tails (sometimes 2).
Family: Long slender mayfly with its gills long, forked, marginally fringed, and projecting laterad; pair of sharp tusks projecting beyond head; the legs are not unusually thick and flattened for digging.
Genus: Not defined.