Insect Pictures with Names

A question we often here is “What kind of insects do you guys use out there in Idaho?”  Here are some fly fishing insects pictures with names of some we imitate in our area for fly fishing.  These bugs are all adult versions of the insect. These are the patterns you would be trying to emulate while dry fly fishing any of our rivers.  Our guides have all the flies you will need each day.  They are all included in your the price of your trip.

Insects pictures and names - Flying Ants

Flying Ants

Flying ants can be very hard to spot on the water. I have seen times where there are two or three different mayfly hatches on the water and I thought the trout were feeding on them. It wasn’t until further investigation I found that they were in fact feeding on flying ants. On this day the trout would not turn down an ant pattern even though there were several different mayflies on the water. They are tricky to spot, but if you find the trout feeding on them, it is a sure thing if you have the flying ant pattern.

Insects pictures and names - Pink Grasshopper

Pink Grasshopper

Ever seen a bright pink grasshopper? Well, neither have I. There are many different colors of grasshoppers in our area. I have heard of people spotting pink, orange, purple and blue grasshoppers. Trout aggressively feed on grasshoppers, especially early in the grasshopper season. One nice thing about grasshoppers is that you can see them on the banks. They also have telltale sounds when flying.

Insects pictures and names - Mormon Cricket

Mormon Cricket

The Mormon crickets are gross looking buggers. I have rarely seen them on the water. I have seen them coming out the mouth of a trout when we released the fish. One place you commonly see them is when they cross a road traveling in crops. At these times there can be swarms of them. Like the grasshopper they come in many different colors from blue to orange. They are big and nasty. This is not truly a cricket but a hard shielded katydid which is related to grasshoppers and crickets.

Insects pictures and names - Common Blue Damselfly

Common Blue Damselfly

The damselfly can create crazy behavior in trout. Have you ever noticed trout jumping a few feet wildly out of the water? They may be chasing damselflies. These bright blue bugs hover over the surface of the water looking for mates. You will often see them joined together flying around mating. The trout see the damselfly hovering and will jump to get them.  We rarely use this pattern, but they are a common bug that you will see on the river.

Insects pictures and names - Mayfly


The Mayfly is the most common bug on our rivers. They hatch most of the summer and fall. Lucky for us they usually range in sizes 18-14, which is easy on the eyes. The Teton River gets especially heavy hatches of mayflies from July through September.  Fly fishing with parachute mayfly patterns is classic dry fly fishing.  There is nothing better than fishing a small dry to a large rising trout.

Insects pictures and names - Caddis Fly

Caddis Fly

On most rivers caddis are the most abundant bugs. This is not the case on the South Fork or the Teton. The Henry’s Fork does have large numbers of caddis. You will often see large swarms of them in May and June. The caddis is distinguished by its “tent like” wing shape.

Insects pictures and names - Salmon Fly

Salmon Fly

The salmon fly hatch is one to behold.  These giant bugs come out in droves.  They are the size of your pinky finger and the fish love them.  Catching the hatch in just the right moment is tricky.  The fish can become gorged on these bugs.  The South Fork, Teton and Henry’s Fork all get this amazing hatch.

If you have any insect pictures, post the link below.


  1. i want many type of insects phots in many country .the phots you takes is verry nice. i like your photes.

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Loved every minute. Stunning views, sumptuous accommodations, friendly people, skilled guides, great food and solitude amidst cordial company. All this plus fish and dogs! Perfect.

Bill & Janet Rich

Your lodge was simply just great. We have spent time in a lot of places over the years but TVL has to rate at the top of the list for overall comfort and layout. It was just ideal for the fishing trip we had planned.

Bill Hubbard

I have just returned from a trip to your lodge. Having never fly fished before, I was a bit leary of it, but I am happy to report that you guys have made a lifetime enthusiast out of me. Me and my two sisters and father enjoyed the daily trips on the river and the fishing turned out to be one of the best family outings our family has encountered.

Staci Eagle

Outstanding day. I was put on dozens of fish! The South Fork truly is one of the best fly fishing waters one could experience. My guide worked hard to make sure he was meeting my needs. You and your team have out done yourselves again.

Rex Baldwin

Bob Hanke and I have been coming to your lodge for something like 25 years. We’ve always had excellent fishing results and have never had a bad trip. However, the trip we had this year to the Henry’s Fork, specifically Bear Gulch, has got to be the best fishing day I have ever had, and I think Bob agrees.

G.R. Post

Thank you again for a memorable trip, and all of your hospitality. You guys are like family, and I absolutely LOVE coming to fish. The four of us had a great time, and the two new guys were blown away with your service, attitude, and attention to detail. I hope to see you soon, and bless you all.

Kevin Blue

Exceeded all of our expectations! Can't wait to come back! Excellent fishing and service! Great fishing, great guides, great staff. Will tell anyone heading to Teton Valley to fish to contact TVL first. Thanks!!!

The King Family

The combination of gorgeous scenery, your excellent staff’s efforts to please, and great fishing make it tough to imagine a more memorable and enjoyable experience.

Tim Buckley

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