WD-40 Midge Fly

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What is the WD-40 Midge Fly?

The WD-40 is one of the most famous and effective midge patterns ever created. This simple yet deadly fly features a slim profile, subtle coloring, and proven design that has caught countless trout in tailwaters and spring creeks worldwide. When fish are feeding on tiny midges, the WD-40 is your secret weapon.

Why is This Fly Called WD-40?

The WD-40 midge was named after the famous lubricant because it works in all conditions and solves problems when nothing else does. Just like the product, this fly is reliable, versatile, and gets the job done when other patterns fail.

When to Use WD-40 Midge Flies?

Midges hatch year-round, making this pattern effective 365 days a year. It's especially productive in winter when midges are often the only insects hatching, during slow periods when fish are selective, and in tailwaters where midges are abundant. This is the ultimate cold-weather fly.

Where to Fish WD-40 Patterns?

This fly excels in tailwaters below dams (like the San Juan River), spring creeks with consistent flows, slow pools and runs, and anywhere trout feed on tiny insects. It's particularly effective in clear water where fish can be extremely selective.

How to Fish a WD-40 Midge?

Fish this pattern subsurface using a dead drift with fine tippet (6X or 7X). Use it as a dropper below a dry fly or indicator, or fish it alone with euro nymphing techniques. The key is a natural, drag-free drift in the feeding lane.

Why Are Midges Important?

Midges are available to trout year-round and often hatch in massive numbers, especially in winter. In many tailwaters, midges represent the primary food source for trout. Having effective midge patterns like the WD-40 is essential for consistent success.

What Size Are WD-40 Flies?

WD-40 patterns typically range from size 18 to 24, matching the tiny size of natural midges. The small profile is crucial for fooling selective trout feeding on these minute insects.

What Fish Eat WD-40 Midges?

All trout species (rainbow, brown, brook, cutthroat) feed heavily on midges, along with grayling and whitefish. This pattern is proven effective in tailwaters, spring creeks, and slow-moving rivers worldwide.

Product Features

  • Famous proven pattern
  • Slim midge profile
  • Subtle natural coloring
  • Works year-round
  • Essential winter fly
  • Perfect for tailwaters
  • Effective for selective trout
  • Small sizes available
  • Hand-tied with quality materials
  • Made in USA