Skip to content
The Woolly Gentleman logo
The Woolly Gentleman
FlyboxTiersWhy These WorkJournalFind Your FliesThe CraftThe Story
Home/Flybox/Yellow Breeches Sulphur
Yellow Breeches SulphurEmergerintermediate

Northeast & Mid-Atlantic

Yellow Breeches Sulphur

Flybox sourcing profile

No TWG price or checkout is active. Use this page to validate the fly, then source it through the mapped tier or trusted fly shops.

Available Sizes#14 - #18
Color Variations
Pale YellowCreamSulfur OrangeLight Olive

Pattern Ledger

Source Yellow Breeches Sulphur

Want help finding this exact pattern or a tied-to-order equivalent? Join the sourcing ledger and we will prioritize demand by water, species, and pattern.

Trusted Sourcing Ledger

Find this fly from an independent source

Exact links are published only after the product name and live page are checked. TWG does not sell the fly, set the price, or control stock, shipping, or returns.

Exact source still under review

We have not published an exact product link for this pattern yet. The directory below can help locate a regional specialist, but it is not proof that the exact fly is currently listed.

Regional source directory

Regional shop

Dette Flies

Matched on Northeast & Mid-Atlantic, emerger flies, trout. Catskill lineage fly shop with deep dry-fly, wet-fly, and Northeast trout relevance.

Northeast & Mid-Atlanticemerger flies
Specialist source

New England Fly Company

Matched on Northeast & Mid-Atlantic, emerger flies, trout. New England tier lead for brook trout, landlocked salmon, and coastal striper patterns.

Northeast & Mid-Atlanticemerger flies
Broad catalog

Fulling Mill Flies

Matched on emerger flies, trout, emerger. Large pattern house with broad freshwater and saltwater fly categories.

emerger fliestrout
Regional shop

Driftless Angler

Matched on emerger flies, trout, spring creek. Driftless-specific trout source for spring creek nymphs, dries, and local bug windows.

emerger fliestrout

These are independent businesses. A listing does not imply endorsement or partnership. TWG currently receives no purchase commission from these links. Any future paid or affiliate relationship will be labeled beside the relevant link.

Pennsylvania has more trout water per capita than any state has a right to, and the Yellow Breeches is the crown jewel of its limestone spring creek tradition. When sulphurs start emerging on a warm May evening, the creek transforms into a cathedral of rising trout, and this emerger sits in the film like a sermon they cannot refuse. The trailing shuck says 'I am transitioning between life stages' in a way that trout find absolutely irresistible. Penns Creek runs the same hatch a week later and twice as heavy, which gives you an excuse to fish two of the finest trout streams in the East in consecutive weekends. Your employer may not understand. The trout will.

Quick Facts

TypeEmerger
Difficultyintermediate
SeasonsSpring, Summer
Target SpeciesBrown Trout, Rainbow Trout
Sizes#14 - #18
Best LocationsYellow Breeches Creek, PA; Penns Creek, PA

Where to Fish It

Yellow Breeches Creek

PA · Limestone Spring Creek

Penns Creek

PA · Limestone Spring Creek

Loading map...

You Might Also Like

CDC EmergerEmergerintermediate

CDC Emerger

Flybox

Find a tier or trusted source

Rocky Mountain West

#14 - #22

Cul-de-canard feather emerger. Natural oils in CDC float the fly in the film. Imitates a mayfly struggling to hatch.

OliveTanGrayRusty Brown

Rainbow Trout · Brown Trout · Cutthroat Trout

SprSumFallWin
Source & Details →
Sparkle PupaEmergerintermediate

Sparkle Pupa

Flybox

Find a tier or trusted source

Rocky Mountain West

#12 - #18

Gary LaFontaine's caddis emerger. Antron sparkle yarn creates a bubble effect mimicking the gas sheath of an emerging caddis pupa.

TanOliveBrownDeep Sparkle Amber

Rainbow Trout · Brown Trout · Cutthroat Trout

SprSumFallWin
Source & Details →
CDC Transitional DunEmergeradvanced

CDC Transitional Dun

Flybox

Find a tier or trusted source

Rocky Mountain West

#14 - #22

A hybrid emerger-dun pattern with CDC wings and a trailing nymphal shuck. Sits half-in, half-out of the surface film.

OlivePale YellowGrayRusty Brown

Rainbow Trout · Brown Trout · Cutthroat Trout

SprSumFallWin
Source & Details →
RS2Emergeradvanced

RS2

Flybox

Find a tier or trusted source

Southwest & California

18-24

Rim Chung's sparse emerger that imitates BWO and midge emergers struggling through the surface film. Minimal materials, maximum effectiveness on educated spring creek trout.

olivegrayblack

Rainbow Trout · Brown Trout

SprSumFallWin
Source & Details →
Halfback EmergerEmergerintermediate

Halfback Emerger

Flybox

Find a tier or trusted source

Southwest & California

14-20

A versatile emerger pattern with a peacock herl body and pheasant tail wingcase. Sits in the surface film imitating struggling mayfly and caddis emergers.

natural peacockolive

Rainbow Trout · Brown Trout

SprSumFallWin
Source & Details →
RS2Emergerintermediate

RS2

Flybox

Find a tier or trusted source

Rocky Mountain West

#18 - #24

Rim Chung's minimalist emerger. CDC or beaver fur wing, thread body. Imitates emerging Baetis and midges in the surface film.

OliveGrayBlack

Rainbow Trout · Brown Trout

SprSumFallWin
Source & Details →

The Woolly Gentleman

Every Fly Has a River · Every River Has a Tier

America's premium flybox and field ledger for choosing the right pattern before you buy.

Join the mailing list. We will tell you what is hatching.

The Flybox

  • Open the Flybox
  • Tiers
  • For Tiers & Fly Shops
  • The Science
  • Why These Work
  • Find Your Flies
  • The Flybox
  • The Journal

Fishing Regions

  • Gulf Coast & Emerald Coast
  • Florida Keys
  • Northeast & Mid-Atlantic
  • Rocky Mountain West
  • Pacific Northwest
  • All 10 Regions

The Gentleman

  • Our Story
  • Nationwide
  • hello@thewoollygentleman.com

© 2026 The Woolly Gentleman. All rights reserved.

Privacy Policy|Terms & Conditions

Chosen with proof. Sourced with care.