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**Mayfly Species Siphloplecton basale (Pseudo-Gray Drake)**

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Metretopodidae (Pseudo-Gray Drakes)

» Genus Siphloplecton (Pseudo-Gray Drakes)

» Species basale (Pseudo-Gray Drake)

Common Names

Match	Common Name
	Pseudo-Gray Drake
	Great Speckled Spinner
	Great Speckled Olive Dun

Pictures Below ↓

This is page 2 of specimens of Siphloplecton basale. Visit the main Siphloplecton basale page for:

The behavior and habitat of Siphloplecton basale.

Pictures of 9 Mayfly Specimens in the Species Siphloplecton basale:

Specimen Page:12

Siphloplecton basale (Pseudo-Gray Drake) Mayfly Nymph

View 4 PicturesThis nymph has double front tarsal claws (Tarsal claw: The claws at the tip of the tarsus, on an insect's "foot.") and double gills on the first three abdominal segments.

Collected March 1, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Siphloplecton basale (Pseudo-Gray Drake) Mayfly Nymph

View 4 PicturesThis nymph has double front tarsal claws (Tarsal claw: The claws at the tip of the tarsus, on an insect's "foot.") and double gills on the first three abdominal segments.

Collected March 1, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Siphloplecton basale (Pseudo-Gray Drake) Mayfly Nymph

View 3 PicturesThis nymph has double front tarsal claws (Tarsal claw: The claws at the tip of the tarsus, on an insect's "foot.") and double gills on the first three abdominal segments.

Collected March 1, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Siphloplecton basale (Pseudo-Gray Drake) Mayfly Nymph

View 3 PicturesThis nymph has double front tarsal claws (Tarsal claw: The claws at the tip of the tarsus, on an insect's "foot.") and double gills on the first three abdominal segments.

Collected March 1, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Siphloplecton basale (Pseudo-Gray Drake) Mayfly Nymph

View 3 PicturesThis one's stunned or freshly dead in the pictures, because the water in my photographing tank was a bit too warm for him after being under the bright light for a while.

Collected January 31, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Siphloplecton basale (Pseudo-Gray Drake) Mayfly Nymph

View 3 Pictures

Collected March 10, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 19, 2006

Specimen Page:12

Jargon Defined:

Nymph: The juvenile, underwater stages of mayflies, stoneflies, dragonflies, and damselflies and other aquatic insects whose juvenile stages are covered by hard exoskeletons. The word can also refer to the fishing flies which imitate these creatures, in which case it is used as a blanket term for flies imitating any underwater stage of an invertebrate (except for crayfish and leeches).

Tarsal claws: The claws at the tip of the tarsus, on an insect's "foot."

Useful References:

Caucci, Al and Nastasi, Bob. 2004. Hatches II. The Lyons Press.

Knopp, Malcolm and Robert Cormier. 1997. Mayflies: An Angler's Study of Trout Water Ephemeroptera . The Lyons Press.

Leonard, Justin W. and Fannie A. Leonard. 1962. Mayflies of Michigan Trout Streams. Cranbrook Institute of Science.