Largest mayfly in America. 1 3/8ths". Cold water
species, primarily in the north. Emerge late May to
late June. Rivers, streams, ponds & lakes. Often a
major contributor to benthos where found.
"Great Dark Green
Drake"
Hexagenia
recurvata
burrowing
mayfly nymph
Largest mayfly in America. 1 3/8ths". Cold water
species, primarily in the north. Emerge late May to
late June. Rivers, streams, ponds & lakes. Often a
major contributor to benthos where found.
Other
burrowing mayflies:
"Great Olive Winged
Drake" , Great
Brown Drake,
Green Drake