Troutnut Forum > Specimen Discussion > Not Capniidae; this is a Nemourid
The Specimen
Prostoia (Tiny Winter Blacks) Stonefly Nymph
View 6 Pictures
View 6 PicturesRegion: Northeast
Collected Mar 29, 2005
Added Apr 7, 2006
The Discussion
| Acroneuria | January 20th, 2007, 8:47 pm | |
| Liverpool, PA Posts: 2 | Hard to tell what genus this belongs to; nemourids can be tricky. Capniids are most often confused with Leuctrids--they are very similar. | |
| Water Pollution Biologist PA Department of Environmental Protection | ||
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| Troutnut | January 20th, 2007, 8:51 pm | |
| Fairbanks, AK Posts: 1115 | Thanks. What characteristic sets it apart? | |
| Jason Neuswanger The Troutnut | ||
| DMM | January 20th, 2007, 9:08 pm | |
| Posts: 141 | If your question is what sets the Nemouridae apart from the Capniidae, the Nemouridae have divergent wing pads and a shorter abdomen. If your question is concerning the Leuctridae versus the Capniidae, the Capniidae have more pleural folds, longer abdomen, and darker wing pads. Of course, these are generalizations based on mature nymphs... | |
| David | ||
| PeterO | April 26th, 2007, 5:01 pm | |
| Posts: 8 | This Nemourid looks like Prostoia sp. A common gill-less genus in central NY. | |
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