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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.

A beautiful braided reach of the Sag River, with the Philip Smith Mountains in the Arctic National Wildlife Refuge (ANWR) in the background. From the Sagavanirktok River in Alaska

Stream photos

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Kogotus Stonefly NymphKogotus Stonefly Nymph
Dorsal view of a Kogotus (Perlodidae) Stonefly Nymph from Mystery Creek #199 in Washington
This one pretty clearly keys to Kogotus, but it also looks fairly different from specimens I caught in the same creek about a month later in the year. With only one species of the genus known in Washington, I'm not sure about the answer to this ID.
8 Recently Added Photos
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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  3. Site updates from August 5, 2004

Closeup insects by Troutnut from Miscellaneous Wisconsin in Wisconsin

Female Stenonema modestum (Cream Cahill) Mayfly Spinner
3 Pictures
Female Stenonema modestum (Heptageniidae) (Cream Cahill) Mayfly Spinner from unknown in Wisconsin
This one was collected in in association with this male. It looks quite different, but that's often the case between spinner genders.
Collected August 4, 2004 from unknown in Wisconsin
Added by Troutnut on January 19, 2006
Collected August 4, 2004 from unknown in Wisconsin and added by Troutnut on January 19, 2006
Male Stenonema modestum (Cream Cahill) Mayfly Spinner
4 Pictures
Male Stenonema modestum (Heptageniidae) (Cream Cahill) Mayfly Spinner from unknown in Wisconsin
Collected August 4, 2004 from unknown in Wisconsin
Added by Troutnut on January 25, 2006
Collected August 4, 2004 from unknown in Wisconsin and added by Troutnut on January 25, 2006
Female Caenis (Angler's Curse) Mayfly Dun
1 Picture
Here's a goofy picture of a Caenis dun falling off the back of a leaf, never to be seen again. These mayflies are very tiny and fragile, and very hard to capture and photograph without damaging. This little dun hatched from the nymph in a tub of nymphs while I was picking through for aquatic specimens to photograph... I grabbed the leaf it hatched onto and tried to take some pictures but it got away after about half a picture. Female Caenis (Caenidae) (Angler's Curse) Mayfly Dun from unknown in Wisconsin
Collected August 4, 2004 from unknown in Wisconsin
Added by Troutnut on January 19, 2006
Collected August 4, 2004 from unknown in Wisconsin and added by Troutnut on January 19, 2006

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