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Updates from May 6, 2007



Photos by Troutnut from the Beaverkill River in New York

 From the Beaverkill River in New York.
Date TakenMay 6, 2007
Date AddedJun 5, 2007
AuthorTroutnut
This popular Catskill stream was a bit crowded on one of the prime days of the Hendrickson hatch. From the Beaverkill River in New York.
This popular Catskill stream was a bit crowded on one of the prime days of the Hendrickson hatch.
Date TakenMay 6, 2007
Date AddedJun 5, 2007
AuthorTroutnut

Closeup insects by Troutnut from the Neversink River, Mongaup Creek, Miscellaneous New York, and Mystery Creek #62 in New York

Paragnetina (Golden Stones) Stonefly AdultParagnetina (Golden Stones) Stonefly Adult View 10 PicturesUnfortunately I forgot to photograph this one next to the ruler, but I seem to remember it being on the small side for a Perlid, maybe around 2cm.
Collected May 6, 2007 from Aquarium in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Cottidae (Sculpins) Sculpin AdultCottidae (Sculpins) Fish Adult View 7 PicturesThis seems to be a mottled sculpin, Cottus bairdi. Normally this species is more mottled.
Collected May 6, 2007 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Neoleptophlebia Mayfly NymphNeoleptophlebia  Mayfly Nymph View 6 Pictures
Collected May 6, 2007 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Lepidostoma (Little Brown Sedges) Little Brown Sedge LarvaLepidostoma (Little Brown Sedges) Little Brown Sedge Larva View 6 PicturesThis one got a little bit damaged in the abdomen when I extracted it from its case. That's a delicate job.
Collected May 6, 2007 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Ephemerella aurivillii Mayfly NymphEphemerella aurivillii  Mayfly Nymph View 9 PicturesI'm pretty sure this is Ephemerella aurivillii. The body is 11mm long, which rules out most other species, and the hind legs seem to be more than 1.5 times longer than the fore legs -- a key characteristic for this species.

This specimen isn't in the best of shape, as it's missing all three tails, but it's the only one of its species I captured in this sample.
Collected May 6, 2007 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Rhyacophila carolina (Green Sedge) Caddisfly LarvaRhyacophila carolina (Green Sedge) Caddisfly Larva View 8 PicturesThis specimens shows that the name "green rockworm" doesn't quite fit all Rhyacophila larvae, even though it does fit the majority. This is actually the first of their larvae that I've found in a different color. I'm not sure if it's because of the species or because this is a young one, but I have found equally small green larvae, so I'm guessing it's the species.
Collected May 6, 2007 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Neophylax (Autumn Mottled Sedges) Caddisfly LarvaNeophylax (Autumn Mottled Sedges) Caddisfly Larva View 7 PicturesThe size of the head compared to the body in this larva is surprising, and I think this means it's a fairly early instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.) of something which is going to get a lot bigger, but I'm not sure.
Collected May 6, 2007 from the Neversink River (above reservoir) in New York
Added to Troutnut.com by Troutnut on May 10, 2007
Ameletus (Brown Duns) Mayfly NymphAmeletus (Brown Duns) Mayfly Nymph View 7 PicturesI think this is a pretty early instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.) Ameletus nymph. It's certainly a striking one.
Collected May 6, 2007 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Hydropsychidae Caddisfly LarvaHydropsychidae  Caddisfly Larva View 5 PicturesThis is one of the most vividly green Hydropsychidae larvae I've caught.
Collected May 6, 2007 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Rhyacophila (Green Sedges) Caddisfly PupaRhyacophila (Green Sedges) Caddisfly Pupa View 2 PicturesEven though I already have pictures of a Rhyacophila pupa in its cocoon, I took this one and then tried to keep the pupa alive, hoping to photograph it in several stages of development. That didn't work out; it seems to have died without changing much. Oh well.
Collected May 6, 2007 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on May 18, 2007

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