Hex Mayflies
Hexagenia limbata
The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
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This specimen keys pretty easily to Onocosmoecus, and it closely resembles a specimen from Alaska which caddis expert Dave Ruiter recognized as this genus. As with that specimen, the only species in the genus documented in this area is Onocosmoecus unicolor, but Dave suggested for that specimen that there might be multiple not-yet-distinguished species under the unicolor umbrella and it would be best to stick with the genus-level ID. I'm doing the same for this one.
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Report at a Glance
| General Region | Yellow Breeches |
| Specific Location | Upper Allen Township |
| Dates Fished | April 10 |
| Time of Day | Noon - 3:45 |
| Fish Caught | Not much - two wild chubs and one stocked brown about 10" |
| Conditions & Hatches | Funny yesterday lots of Grannoms, tan caddis, and Hendriksons. Today no Hennies at all, just sparse tan caddis and virtually no Grannoms and very few rising trout. |
Details and Discussion
Wbranch on Apr 10, 2008April 10th, 2008, 1:44 pm EDT
Spoke to a woman fly fisher who knew what she was talking about and told me that there have already been a few days with blanket Heenies on the river. What do I know I thought yesterday when I saw a few bugs that maybe it was just starting but maybe it is almost over. Not sure - maybe it was just too bright today.
Tomorrow Clarks Creek brookies.
Tomorrow Clarks Creek brookies.
Catskill fly fisher for fifty-five years.
LittleJ on Apr 10, 2008April 10th, 2008, 3:33 pm EDT
I was on a stream in Md Just south of the border for 2 days this week and still saw a few hennies so I would bet they aren't quite complete in S. Pa.