Hexagenia atrocaudata Big Slate Drake or Hex. THE LARGEST MAYFLY. Body size 15-24mm. Size 8-12 2XL

NYMPHS

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Natural

Strip Nymph, Gary Borger

Nymphs are burrowers in silt or sand, fish w/ swimming, twitching retrieve. My favorite pattern is the Strip Nymph.

DUNS

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Natural Photo by Don Douple

Hair Wing Dun, Gary Borger

Duns emerge in late August through early September sporadically throughout the day, increasing in late afternoon and early evening.

​ SPINNERS

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Natural Photo by Don Douple

Parachute Spinner, Gary Borger

Spinners fall is in the evening.

My favorite patterns appear in Gary Borgers “Designing Trout Flies” (rgr)

Spinners appear out of nowhere, approximately. 8pm. above the riffles.

Most of the bugs I’ve collected were females. The abdomen of the females appears to rip open to lay eggs about 2 or 3 segments from the tip of the abdomen. Females die immediately after laying eggs.

Male tails are twice as long as females. Claspers are To receive updates click here

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