Overview
The Longhorn Beetle was developed at Blue Ribbon Flies to imitate the long-horned beetles common near western rivers. The original pattern used tiger strip foam which is no longer available, so current versions use black foam with a green indicator strip pulled over the top. The distinctive antennae made from black Krystal Flash add realism and help trigger strikes.
Related patterns
Behavior & presentation
- Natural Behavior
- Beetles drop from overhanging branches or wash into streams during rain, floating helplessly with their hard wing cases visible on the surface. Trout consume these armored terrestrials for the protein-rich soft tissue beneath the exoskeleton.
- Where Trout Eat It
- Fish patrol beneath streamside vegetation and along grassy banks where beetles tumble onto the water. Foam lines concentrate these drifting terrestrials into predictable feeding zones.
- How to Fish It
- Tight casts to banks with motionless floats allow the rubber legs to provide subtle life, then twitch occasionally to suggest struggling insects. Dead drift through foam lines where beetles collect.
- Best Water
- Prioritize foam lines that trap terrestrials, undercut banks beneath trees, and grass edges where beetles are abundant during warm months.
- Strike Type
- Visible surface explosions or expanding rise rings mark aggressive terrestrial takes.
Fishing strategy
- Rigging Suggestions
- Fish on 9-12 foot leader with 4X tippet. The foam provides excellent floatation and can support a heavy dropper nymph. Use heavier tippet to handle the larger hook size.
- Seasonal Timing
- Most effective from June through October when beetles are active near water. Peak performance during warm days when beetle activity is highest.
- Pro Tips
- The green indicator strip provides excellent visibility while maintaining a realistic profile. Foam construction ensures all-day floatation without waterlogging.
Where to fish it
Rivers anglers pair with this fly, with local shops that stock it.
River details and fly shops from River & Run, our sister site.
Entomology
Beetles tumble from overhanging vegetation or are washed into streams during rain events, floating with their hard wing covers creating a distinctive profile on the surface. Fish readily consume these armored insects because the chitinous exoskeleton contains valuable proteins and minerals.
- Order
- Coleoptera
- Common name
- Beetle
- Organism
- terrestrial
- Life stage
- adult
Pattern details
- Moving Water
- Stillwater
- Rocky Mountain
- dead-drift
- hopper-season
- searching-pattern
- low-clear-water
- freestone
- spring-creek
