Adams Dry Fly
The Adams is one of the most successful dry fly patterns of all time.
Can be used to imitate a plethora of mayfly hatches, including baetis, callibaetis, and the drakes.
Also used for caddis in-flight, and just a general “cast and see”.
Often times the first dry fly we cast, especially when nothing obvious is going on.
Invented in 1922 by Leonard Halladay and named after his friend Charles Adams.
Extremely popular, a must-have for dry fly enthusiasts.
| Features | Details |
|---|---|
| Pattern Type | Dry fly |
| Origin | 1922, invented by Leonard Halladay |
| Named After | Charles Adams |
| Primary Use | Mayfly hatches, caddis in-flight |
FAQ
What types of insects does the Adams pattern imitate?
The Adams pattern imitates mayfly hatches such as baetis, callibaetis, and drakes. It is also effective for caddis in-flight.
Is the Adams fly suitable for beginners?
Yes, the Adams is often the first dry fly anglers try, especially when no obvious action is present.
When was the Adams fly invented?
The Adams fly was invented in 1922 by Leonard Halladay.

Robert Lawrence –
I’ve used the Adams fly for years and it’s still one of my go-to patterns. Works well in both still waters and moving streams. Easy to cast and consistently retrieves fish when the hatches are active.
Fiona Coleman –
Great for imitating mayflies during early morning hatches. I noticed fish taking the fly even when the water looked quiet. A reliable pattern that doesn’t require much adjustment.
Neil May –
The Adams is a classic. I use it during caddis hatches and it’s surprisingly effective. A bit heavier than some other dry flies, but that’s part of its appeal.