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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Some characteristics from the microscope images for the tentative species id: The postero-lateral projections are found only on segment 9, not segment 8. Based on the key in Jacobus et al. (2014), it appears to key to Neoleptophlebia adoptiva or Neoleptophlebia heteronea, same as this specimen with pretty different abdominal markings. However, distinguishing between those calls for comparing the lengths of the second and third segment of the labial palp, and this one (like the other one) only seems to have two segments. So I'm stuck on them both. It's likely that the fact that they're immature nymphs stymies identification in some important way.
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Jjlyon01 on Mar 20, 2008March 20th, 2008, 11:16 am EDT
SUNY ESF every year celebrates Earth Day all week and as part of the festivities we find ways to care for our Mother Earth. This year a few organizations within the school are at the forefront of an Adopt-a-Stream program, including the Fly Fishing club. We are looking for as much help as possible and plan to be on the stream April 26th from 10 until 2. We will be working along Butternut Creek in central New York. If anyone wants to spend some time and lend a hand on Butternut Creek that Saturday afternoon let me know.
"I now walk into the wild"
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