Thursday, June 18, 2015

New discoveries: the 2014-2015 season

(Perlodid stonefly, genus Kogotus: Clark Fork River in Montana, August 18. 2014.)

I think of the annual "season" as starting each fall and ending the following spring.  So, the 2014-2015 season is pretty much over.  True, I might find a new species or two in the Rivanna River this summer, but in most of the streams that I visit the annual cycle is finished.  So, what did we discover this year in terms of new species (EPT species)?

1. 10/28/14 and 12/27/14.  The common stonefly, Acroneuria lycorias, which we distinguished from Acroneuria carolinensis.


2. 12/21/14.  A new genus of Lepidostomatid: Theoliopsyche.

This one was not in its own case: that case belongs to a Pycnopsyche gentilis caddisfly larva.  Still, it was a good find since this genus is not all that common.

3. 12/27/14.  A new genus of crane fly: Dicranota.


4. 1/2/15.  A humpless case-maker that one of my friends had found twice before, but this was the first time I had seen it: Adicrophleps hitchcocki.

This species is "imperiled" in the state of Virginia.

5. 1/19/15.  A new Isoperla Perlodid: Isoperla latte.   Found -- where else? -- at the Rapidan River.


6. 4/12/15.  And a new Nemourid stonefly: Ostrocerca truncata.

7. and 8.  To these we should add two caddisfly species that my friend discovered (for which, see the entries of 11/11/14 and 11/17/14):  Molanna blenda and Psilotreta rufa.

Summer is here, and it's here in spades!  Day after day our temperatures have been in the 90's with dew points as high as 74ยบ.  Sure hope this abates.   I can't do any stream work until it does.

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