Mark Melton
Life of the Party
These nymphs were found in the Russian River in shallow fast water. They're most common from late January to mid April. They run around 13 - 15mm not including cerci or antennae. The nymphs were identified using this article, the description starts on page 28 and the photos on page 30.
http://www2.pms-lj.si/illiesia/papers/Illiesia07-22.pdf
http://www2.pms-lj.si/illiesia/papers/Illiesia07-22.pdf
