Blue-winged Olives
Baetis
Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
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Taxon on Aug 27, 2006August 27th, 2006, 10:14 am EDT
According to a group of Oregon State University researchers, sublethal level of exposure to pyrethroids (a class of synthetic pesticides derived from naturally occuring chemicals in chrysanthemums) are causing caddisfly larvae to prematurely abandon their cases, and be incapable of rebuilding them with satisfactory substitutes.
Here is a link to the full text of the news release.
Here is a link to the full text of the news release.