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.

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Female Sweltsa borealis (Boreal Sallfly) Stonefly Adult Female Sweltsa borealis (Boreal Sallfly) Stonefly Adult

Lateral view of a Female Sweltsa borealis (Chloroperlidae) (Boreal Sallfly) Stonefly Adult from Harris Creek in Washington

I was not fishing, but happened to be at an unrelated social event on a hill above this tiny creek (which I never even saw) when this stonefly flew by me. I assume it came from there. Some key characteristics are tricky to follow, but process of elimination ultimately led me to Sweltsa borealis. It is reassuringly similar to this specimen posted by Bob Newell years ago. It is also so strikingly similar to this nymph from the same river system that I'm comfortable identifying that nymph from this adult. I was especially pleased with the closeup photo of four mites parasitizing this one.

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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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august wisconsin hatches?

Ike
MN

Posts: 14

Ike on Aug 15, 2012August 15th, 2012, 5:39 am EDT

I'm fairly new to fly fishing and tying with only 5 trips under my belt and around 3 months worth of flies. in the next few days I'm going to be fishing the rush and kinnikinnick rivers. I was wondering if anyone had any information on hatches going on this time of year or any other advice that might help me make this trip a success. Id be truly appreciative of any help.

PaulRoberts

Colorado

Posts: 1776

PaulRoberts on Aug 15, 2012August 15th, 2012, 8:14 am EDT

I'm sure someone will pipe in. In the meantime, you can Google "hatch charts" or "emergence tables" and rivers in your area and probably come up with some.

Ike
MN

Posts: 14

Ike on Aug 15, 2012August 15th, 2012, 11:23 am EDT

thanks! i was thinking possibly tricos in the morning and terrestrials later in the day. just wondering if anyone could confirm or correct that. otherwise hopefully that will produce some fish.