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Mayfly Family Siphlonuridae (Gray Drakes)

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» Family Siphlonuridae (Gray Drakes)
Genus in SiphlonuridaeNumber of SpecimensNumber of Pictures
SiphlonurusGray Drakes1555

3 genera aren't included.
Common Name
MatchCommon Name
****Gray Drakes
Pictures Below ↓
These large, slender mayflies have nymphs of the swimming type, like Isonychiidae and Metretopodidae, and they generally inhabit slow water. See Siphlonurus for details -- it is the only genus of known importance to anglers.

Pictures of 15 Mayfly Specimens in the Family Siphlonuridae:

Specimen Page:123
Siphlonurus quebecensis (Gray Drake) Mayfly NymphSiphlonurus quebecensis (Gray Drake) Mayfly Nymph View 9 Pictures
Collected May 13, 2007 from the Delaware River in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Male Siphlonurus quebecensis (Gray Drake) Mayfly SpinnerMale Siphlonurus quebecensis (Gray Drake) Mayfly Spinner View 10 Pictures
Collected June 2, 2005 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on May 24, 2006
Siphlonurus occidentalis (Gray Drake) Mayfly NymphSiphlonurus occidentalis (Gray Drake) Mayfly Nymph View 4 Pictures
Collected July 31, 2007 from Crazy Beaver Spring in Montana
Added to Troutnut.com by Bnewell on June 28, 2011
Specimen Page:123

3 Underwater Pictures of Siphlonuridae Mayflies:

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In this picture: Mayfly Genus Siphlonurus (Gray Drakes). From the West Branch of the Delaware River in New York.


In this picture: Mayfly Genus Siphlonurus (Gray Drakes).
StateNew York
LocationWest Branch of the Delaware River
Date TakenMay 13, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
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Several fast-swimming Siphlonurus nymphs blend in very well with the silt in this slow backwater along a trout stream. In this picture: Mayfly Genus Siphlonurus (Gray Drakes). From the Namekagon River in Wisconsin.
Several fast-swimming Siphlonurus nymphs blend in very well with the silt in this slow backwater along a trout stream.

In this picture: Mayfly Genus Siphlonurus (Gray Drakes).
StateWisconsin
LocationNamekagon River
Date TakenMay 15, 2004
Date AddedJan 25, 2006
AuthorTroutnut
CameraOlympus C740UZ
View Full SizeView Full Size and Comment (1.9X larger)
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In this picture: Mayfly Genus Siphlonurus (Gray Drakes). From the Namekagon River in Wisconsin.


In this picture: Mayfly Genus Siphlonurus (Gray Drakes).
StateWisconsin
LocationNamekagon River
Date TakenMay 15, 2004
Date AddedJan 25, 2006
AuthorTroutnut
CameraOlympus C740UZ

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