Montana Fly Fishing Insects: Hoppers

Orthoptera (Grasshoppers and Crickets)

One of the more common terrestrial insects around the rivers of Montana is the grasshopper (Melanoplus sanguinipes). This is an early hatching species where nymphs are found from mid-May through mid-June and adults are seen from June through October and sometimes into November, depending on the year.

“Hopper season” on the Yellowstone and upper Madison rivers typically takes off in late July. Bozeman fly fishing guide trips are focused on fishing large dry flies and dry/dropper rigs once hatches wane and trout begin to key into large terrestrials.

Grasshoppers are common across Montana and inhabit grasslands and meadows up to 8800 feet in elevation. They are most active feeding on vegetation along the banks of rivers on warm, sunny days, and trout are attracted to them when they are blown into the river. Afternoon winds or even thunderstorms are great times to throw a hopper pattern on to see if any of the larger trout in the river want this big, tasty meal.

This medium-sized grasshopper is dark grayish-brown and tinged with red and yellow. There are multiple species along the Montana fly fishing rivers, however, so don’t limit yourself to one size or color.

Casting a grasshopper, letting it sit, and then giving it occasional twitches if fishing calmer water is the ticket. In choppier water, the twitch is often unnecessary. Focus on the banks, but don’t discount runs throughout the width of the river as strong winds will push them anywhere trout live.

Don’t forget to try different patterns and sizes as hoppers can range from size #4-#10. And be patient with your hookset.

3 Best Fly Fishing Rivers in Montana For Hopper Season

1. Yellowstone River
2. Madison River
3. Gallatin River

5 Best Hopper Fly Patterns For Fly Fishing in Montana

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