Black flies are not usually regarded as important trout fare, but scientific studies of some rivers have shown them to make up the majority of the trout's diet. Such places are few and far between, but anglers should be aware of the possibility and keep a lookout for high concentrations of the larvae.
Mushroom on Sep 22, 2014September 22nd, 2014, 12:55 am EDT
Thank you for the nice quality pictures. I want to use your picture in my personal presentation in my science class. Would you mind this? I will wait your answer. thank you.