**Mayfly Species Drunella doddsii (Western Green Drake)**

Mayflies

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Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)

» Genus Drunella (Blue-Winged Olives)

» Species doddsii (Western Green Drake)

Common Names

Match	Common Name
	Western Green Drake
	Great Lead-Wing Olive Drake
	Lead-Winged Olive
	Green Drake
	Great Red Spinner

Pictures Below ↓

This species together with the Drunella grandis sub-species make up the Western Green Drake hatch. Besides being smaller, the adults are difficult to tell apart from it's larger siblings; but D. doddsi nymphs have a few peculiar traits that set them apart. D. doddsi looks much thicker in the thorax (Thorax: The thorax is the middle part of an insect's body, in between the abdomen and the head, and to which the legs and wings are attached.), has a flat frontal head margin and a unique oval disk-like ring of hairs on its ventral (Ventral: Toward or on the bottom.) surface. However, There are very few differences between the habits of these two species, and they are almost always discussed together in fly fishing books, so for many of the characteristics of doddsii, refer to the Drunella grandis page.

Where & When

Region: West

Fred Arbona writes that doddsii is only found in "cold, fast-flowing sections of freestone rivers." This is the only important difference between it and Drunella grandis, which exists in a wide variety of habitats.

Pictures of 12 Mayfly Specimens in the Species Drunella doddsii:

Specimen Page:12

Male Drunella doddsii (Western Green Drake) Mayfly Dun

View 13 Pictures

Collected July 17, 2011 from the Gulkana River in Alaska
Added to Troutnut.com by Troutnut on July 20, 2011

Drunella doddsii (Western Green Drake) Mayfly Nymph

View 12 Pictures

Collected July 17, 2011 from the Gulkana River in Alaska
Added to Troutnut.com by Troutnut on July 20, 2011

Drunella doddsii (Western Green Drake) Mayfly Nymph

View 2 Pictures

Collected May 12, 2005 from Hungry Horse Creek in Montana
Added to Troutnut.com by Bnewell on June 28, 2011

Specimen Page:12

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Jargon Defined:

Nymphs: 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).

Thorax: The thorax is the middle part of an insect's body, in between the abdomen and the head, and to which the legs and wings are attached.

Ventral: Toward or on the bottom.

Useful References:

Arbona, Fred Jr. 1989. Mayflies, the Angler, and the Trout. Nick Lyons Books.

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.