We post current hatch information in the Friday Update, as the season goes on.
If you are looking for general hatch information
check out the chart below and the write-up below that.

Check out our Midge page and our Blue Dun Mayfly page.


Mar Apr May Jun Jul Aug Sept Oct
Little Black Stones


March and April hatch
crawls to shore to hatch, very small, small black stone nymphs fished slow & low
Blue Winged Olive
They hatch early, mid and late season


Look for these guys anytime during the season.
one or another species of BWO can be found hatching throughout the year in most streams and in most types of currents - probably the Baetis nymph, BWO dry & compare duns will produce the most results for you.  Often known to hatch in poor weather conditions.
Quill Gordon
Quill Gordon mayfly


Mid-May to early June
This hatch and the Hendrickson hatch often overlap.
Hatches underwater, fast water,  hare's ear wet, Quill Gordon dry
If the violets are out on your lawn - Hendricksons are hatching


Mid-May to Mid June
  This is an early hatch and often the fish aren't looking up yet - think nymphs.
10's & 12's our first big fly hatch, standard dry & nymph pattern, mid-day hatch 2 - 4pm, 50-55 degree water.


Mid-May to late June
A BWO with three tails and bigger than most (14), morning hatch, use pale green emerger, dun darkens upon emergence to olive.
March Brown


Early to late June
another big mayfly, sporadic hatches all day
Yellow Stones
note the damaged wing and tail


Peak in June - last until August
yellow stone nymph, retrieve slowly towards shore, insect does not hatch in water.
Gray Caddis


Mostly in April and May - some in June
 Midday hatch.  Gray Elk Hair Caddis
Tan Caddis
 Peak late May through August - waning in September
apt to hatch any time of day, more common in the pm - tan elk hair caddis - tan emerger
Olive Caddis
Peak late May through August - waning in September
Actually several species grouped together.  Size range  14-18. Color ranges from dark olive to bright green. When in doubt try one.
Little Black Caddis


1st week of June thru Mid August, small size 16 - 18, black elk hare caddis, mid-day, riffles & runs     
Peak June through August - waning in September
Light Cahill
about the last of the bigger flies - the days get shorter & the flies smaller


June and July - last big fly hatch of the season they all get small after this one.
size 10 & 12, mid-day to late evening, runs


Mar Apr May Jun Jul Aug Sept Oct
I do not profess to know a lot about aquatic insects.  Most of what you find here is taken from my field notes and they are vague at best.  If you think some important insects are left out, let me know.   If you feel some of the dates are wrong, let me know.  I offer this is a very informal, very amateur chart, and will welcome upgrades.

There is nothing unusual about the hatches on the Kennebec. You occasionally get an odd hatch but the good old standbys will serve you well. 

For the early season, bring Blue Wing Olives (dry) and Black Stonefly nymphs. You can't go wrong there. A little later on March Browns & Red Quills will bring up more fish. As a bonus you will also get to see some Golden Stones. Sometime before the Blue Wing Olives and the Golden Stones - look out here come the Caddis. And, for the rest of the summer Caddis flies will produce fish. 

The Caddis Flies on this river hatch in every size and color you read about. You will have most of the hatches covered if you bring Tan, Olive and Black - sizes 14 & 16. Along about midsummer maybe even an 18. Additionally, you will normally see a lot of Mayfly hatches. Stonefly nymphs will catch fish for you all season. 

It's common to catch fish with a Woolly Bugger fished dead drift and right on bottom. That leads to quite a bit of discussion around here - is that nymphing or is that fishing with a streamer. Either way, bring Woolly Buggers with you.   When the hatch isn't on, they will get the job done. So will most of the standard nymphs fished that way if you give them a try. 

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