Alex C. 0 Report post Posted April 6, 2006 I captured several of this nymph species on a local river. I am 99% sure it's an Isonychia Bicolor nymph, but was hoping someone could confirm it for me Quote Share this post Link to post Share on other sites
Alex C. 0 Report post Posted April 6, 2006 there is a pale stripe that goes down the center of it's back, from near the head to the tails, it doesn't show up very well in the pic though Quote Share this post Link to post Share on other sites
Joe Hard 0 Report post Posted April 6, 2006 I think you nailed it. Nice pic. Quote Share this post Link to post Share on other sites
fly time 0 Report post Posted April 6, 2006 Thats what it looks like to me. Quote Share this post Link to post Share on other sites
Ethan Bright 0 Report post Posted May 27, 2006 Definitely Isonychia (many fine setae on the fore-femora), and probably bicolor. However, definite species identification of nymphs requires careful examination of gill structure, which necessitates a microscope. However, this isn't a problem where there's no overlap (spatially or chronologically) of other species. I have an on-line key at: http://insects.ummz.lsa.umich.edu/~ethanbr...onychiidae.html Cheers, Ethan Quote Share this post Link to post Share on other sites