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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
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Sweltsa (Sallfly) Stonefly Nymph Pictures

Ruler view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Delaware River in New York The smallest ruler marks are 1 mm.
Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Delaware River in New York
Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Delaware River in New York
Dorsal view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Delaware River in New York
Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Delaware River in New York
Ventral view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Delaware River in New York

This stonefly was collected from the Delaware River in New York on May 13th, 2007 and added to Troutnut.com by Troutnut on May 18th, 2007.

Discussions of this Nymph

Chloroperlidae
Posted by Earlfishman on May 19, 2007
Last reply on May 19, 2007 by DMM
Jason,

This one looks more like a Chloroperlidae than Capniid. Take a look at the glossae and paraglossae, the length of the cerci, and the wingpads. It's probably Sweltsa sp. based on the hairy chest/shoulders/armpits and the hairs on the cerci.

Earl

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Sweltsa (Sallfly) Stonefly Nymph Pictures

Collection details
Location: Delaware River, New York
Date: May 13th, 2007
Added to site: May 18th, 2007
Author: Troutnut
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