Doc’s Top 5 Terrestrial Flies

Written by: Doc Thompson

The proverbial dog days of summer are upon us—often a time when people think fishing is slow, with not many obvious insects for trout to eat. On the contrary, the dog days of summer aren’t dog days; they are terrestrial days! Now is the time to start stocking your fly boxes with terrestrial dry flies for August and early September fishing. Here are 5 trout-approved terrestrial patterns that every angler should have in his or her fly boxes. You probably already have some hoppers, so perhaps this late summer and early fall is time to experiment with the lesser known terrestrial heroes: beetles and ants.

Foam Park Hopper

1. Foam Park Hopper—A foam-body pattern that is a pretty good imitation without a stereotypical foam-fly look. The Foam Park is a proven pattern on many Rocky Mountain trout waters. It will float all day when you’re pounding grassy bank lines and foam eddies, or if you’re casting a classic hopper-droppers setup.

Psycho Billy

2. Psycho Billy Beetle—A low-riding pattern that’s easy to see. The Psycho Billy presents an appetizing beetle footprint in the water when drifting along the bank, and in fast riffles with potholes and
drop-offs. A proven terrestrial from New Mexico to Montana, it also works great with an ant dropper.

Rosenbauer Parachute Beetle

3. Rosenbauer Parachute Beetle—Another beetle that rides low in the water. (I hope you’re seeing a common them with terrestrials here.)  This is an effective beetle pattern for small mountain streams on August afternoons. It works well fished alone, even better with an ant dropper.

Hard Body Ant

4. Hard Body Ant—This ant pattern rides in or just below the surface film, and it’s best fished as a dropper tied off a hopper or easy to see beetle pattern. Fish it along calmer edges or in eddies with overhanging grass or willows. Equally effective as a drowned ant when fished along fast bank lines and in riffles.

Splitsville Ant

5. Splitsville Flying Ant—Anglers often overlook flying ants, bit it is common to see swarms of flying ants in August and early September in the high country of the Southwest, especially on alpine lakes. This pattern has a great silhouette on the water, riding low with a whitish opaque wing.

Doc Thompson is an Orvis-Endorsed Guide in northern New Mexico, as well as an Orvis contract fly tier. 

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