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Flies for Vermont trout streams

Top | Patterns | Mayfly Hatches | Caddis Hatches

Dry Flies:

  • Adams (12-18)
  • Elk Hair Caddis (tan) (14-18)
  • Blue-winged Olive (14-20)
  • Hendrickson (12-14)
  • Sulphur (14-18)
  • Light Cahill (12-16)
  • Trico spinner (20-26)

Nymphs/Emergers:

  • Gold-ribbed Hare's Ear (12-18)
  • Pheasant Tail (12-18)
  • Muskrat (12-14)
  • Caddis pupa (14-18)
  • Caddis emerger (14-18)

Terrestrials:

  • Hopper (6-12)
  • Black Ant (14-18)

Patterns

So, you're fly fishing for trout in Vermont and you want to know what's working? The cynical answer is whatever wasn't working yesterday. The slightly less cynical answer is that it all depends on a lot of things, almost all of which are completely out of your control.

Still, there are a few standbys that no one should be without. Every list like this, including mine, is different from every other list. But it should serve as a rough guide.

Vermont has its share of hatches, but on most streams you shouldn't count on a series of predictable hatches proceeding like clockwork throughout the season. In some ways this is a blessing. You'll notice that my list of flies is rather short. That's because there are only a few hatches that need to be matched precisely (in my experience, most notably the sulphurs), and in most other cases a more general pattern like an Adams (my personal favorite indispensable) or a nymph will serve you best.

Also, on a good day, a hungry Vermont brookie will hit everything from rubber bands to tinfoil to flies that have lost every bit of fur and feather and are nothing but scraps of thread on a hook. Assuming that you're going to run into more discriminating quarry, this is my list, in no particular order. (Ask me again tomorrow and it will probably be different.)

Top | Patterns | Mayfly Hatches | Caddis Hatches

Emergence chart for mayflies

Remember, this is only the roughest of guides. Many streams will only have a few of these mayflies, and many won't have any reliable hatches at all. Forget what you know about Pennsylvania or the Catskills; this is Vermont, and the safest prediction is that the hatches will be unpredictable. The chances are that these hatches will proceed nothing like clockwork (unless you have an especially erratic clock). One day you'll find no hatches at all, the next you might find a spectacular hatch that goes completely ignored by the trout, and another day you'll run into a classic hatch with feeding trout everywhere.


Species Pattern
May
June
July
Aug
Sep
Time Habitat

Epeorus pleuralis Quill Gordon
(12-14)
  * * * *                                           afternoon rapids, riffles
Baetis vagans Blue-winged Olive (18-20)   * * * *                                           late morn. to late aft. varied
Pseudocloeon carolina Blue-winged Olive (20-24)   * * * *                       * * * *             evening aquatic plants, rich streams
Ephemerella subvaria Hendrickson
(12-14)
  * * * *   *                                       afternoon varied
Paraleptophlebia adoptiva Blue Quill
(18-20)
    * * *                                           late morn. to early aft. quiet water, eddies
Stenonema vicarium March Brown
(10-12)
      * *   * * *                                   sporadic rapids, riffles
Stenonema fuscum Grey Fox
(10-12)
        *   * * * *                                 sporadic rapids, riffles
Ephemerella invaria/rotunda Sulphur, Pale Evening Dun (14-16)             * * * *                                 afternoon med.-to-fast current
Ephemerella dorothea Sulphur, Pale Evening Dun (16-18)             * * * *   *                             dusk pools, quiet water
Epeorus vitrea Sulphur, Pale Evening Dun (12-14)               * * *   *                             aft. to dusk, or morn. rapids, riffles
Ephemerella cornuta Blue-winged Olive (14-16)               * * *   * *                           mid-morn. to midday fast water, riffles
Stenonema ithaca/canadense Light Cahill
(12-14)
              * * *   * * *                         evening until dark rapids, riffles
Isonychia bicolor Dun Variant, Mahog. Dun (10-12)               * * *   * * * *                       late aft. to dark fast water, pools
Potamanthus distinctus Golden Drake, Cream Var. (10-12)                         * * *   * * *               dusk and after dark medium current, eddies
Ephemera varia

Cream Variant
(10-12)

                        * * *   * * *               dusk and after dark silt, fast riffles
Tricorythodes atratus/stygiatus Trico
(24-26)
                                * * * *   * * * *   early morning slow-to-med. current, silt, sand

Species Pattern
May
June
July
Aug
Sep
Time Habitat

Top | Patterns | Mayfly Hatches | Caddis Hatches

Emergence chart for caddis flies

Compared to mayflies, picking the right caddis pattern is simple. It almost (but not quite) doesn't even matter, as long as the size is right. Fishing it with the right action matters a lot more than getting the color matched exactly. Pick a favorite caddis pattern (the Elk Hair Caddis is tough to beat, although the Henryville Special is also good, as is pretty much any general downwing pattern), get a bunch in the right size range (14-18 will cover most of them), and go fishing.


Species Wing Color Body Color Size  
May
 
June
 
July
 
Aug
 
Sep
  Time Habitat

Chimarrha spp. med. gray black (16-20)   *                                           afternoon med. slow water
Brachycentrus numerosus brownish gray dk. grayish olive (12-16)   * * * *   *                                       afternoon riffles
Rhyacophila spp. brownish gray dk. green or greyish brown (14-18)   * *   * * * *   * * *                 afternoon to evening riffles
Psilotreta labida dark gray mottled dk. green/charcoal (12-16)     * * *   *                             evening med.-to-fast current, silt, fine gravel
Hydropsyche morosa light brownish gray grayish olive (14-18)         * * *   * * * *                       evening riffles, gravel
Pycnopsyche guttifer mottled light brown light brown (10-12)                           * *   * * * *   dusk and after dark eddies with leaves/twigs

Species Wing Color Body Color Size
May
June
July
Aug
Sep
Time Habitat

Top | Patterns | Mayfly Hatches | Caddis Hatches

References

Allen et al. (1985)
Caucci and Nastasi (1975)
Hickoff and Plumey (1999)
Solomon and Leiser (1977)
personal experience


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Copyright © 2000 David Guertin
Last modified Saturday, April 15, 2000 23:13:26