Mayfly
Large Brook Dun nymph
CLASS |
Insecta |
ORDER |
Ephemeroptera |
FAMILY |
Heptageniidae |
GENUS |
Ecdyonurus |
SPECIES |
torrentis |
Keys used for
this identification
Most bristols on the dorsal side of the fore leg femur proiximocentrally are tapered and with pointed tips
Each tarsus with a dark band proximal and distal.
THE GRUNDAU BENTHOS REPORT
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