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Dry FliesMoc's Cert Variant

The Moc's Cert Variant is a dry fly pattern designed by Rodney Hobbs. This effective pattern works well in a variety of water conditions and is tied with traditional materials for a proven presentation.

Season
Spring, Summer, Fall
Difficulty
Intermediate
Target Species
Trout
Updated
Feb 2026
Moc's Cert Variant fly pattern - imitates Ants tied for Trout

Overview

Rodney Hobbs' Moc's Cert Variant adapts traditional ant patterns with modern materials and proportions. The segmented body creates a convincing ant profile while foam components ensure positive flotation in choppy water. The pattern's low profile sits naturally in the surface film, mimicking struggling terrestrials. Its simple tie allows for quick variations in size and color to match local ant populations during summer terrestrial seasons when ants become a primary food source.

Materials

Hook: Tiemco 202SP #6
Thread: Benecchi 12/0, black
Wing: Arctic fox, dyed black (or squirrel tail, dyed black)
Abdomen: Tinsel, flat silver
Thorax: Seal's fur, black - in split thread
Rib: Tinsel, flat silver
Collar: Saddle hackle, dyed black
Overwing: Peacock sword

Behavior & Presentation

Natural Behavior: Terrestrial ants tumble from overhanging vegetation and struggle violently to right themselves while trapped in the surface film. Their high protein content and helpless thrashing make them priority targets that fish will rise for even when aquatic insects are abundant.

Where Trout Eat It: Trout target this ant variant along banks with overhanging vegetation and in seams where terrestrial ants drift after falling from streamside plants. The flat silver tinsel and peacock sword wing create flash that attracts fish holding tight to banks waiting for high-protein terrestrial meals.

How to Fish It: Dead drift with 5X tippet casting parallel to banks within inches of vegetation. The black saddle hackle and arctic fox wing provide visibility while the silver tinsel body creates subtle flash. Focus on undercut banks and seams where struggling ants concentrate.

Best Water: Fish grassy banks, undercut edges, and slow seams near overhanging brush where ants naturally fall. The saddle hackle collar provides flotation in broken bank water and transitional holding areas. Effective along margins with vegetation during terrestrial feeding peaks.

Strike Type: Observe deliberate sips tight to banks where trout confidently inhale the ant pattern. The peacock sword wing creates a visible target that vanishes in quiet rise forms.

Fishing Strategy

Rigging Suggestions: Use a 9-12 foot leader tapering to 5X tippet for delicate presentations. Apply floatant to the body and hackle.

Seasonal Timing: Most effective during peak feeding periods at dawn and dusk. Water temperatures between 45-65°F typically produce best results.

Pro Tips: Floats well with proper floatant application. The natural materials provide good visibility without spooking wary fish.

Entomology

Terrestrial ants tumble from overhanging vegetation and struggle violently to right themselves while trapped in the surface film. Their high protein content and helpless thrashing make them priority targets that fish will rise for even when aquatic insects are abundant.

Order
Hymenoptera
Family
Formicidae
Common Name
Ant
Organism Type
terrestrial
Life Stage
adult

Pattern Characteristics

Intermediate Difficulty
Trout
Moving Water
Stillwater
Spring
Summer
Fall
Imitates: Ants
United Kingdom
dead-drift
classic
modern