Hydropsyche angustipennis

A single example is given to illustrate the fact that virtually any quantifiable effect may be used as an end point. The net spinning behavior of the caddis fly Hydropsyche angustipennis has been used to evaluate the aquatic toxicity of 4,5,6-trichloroguaiacol both the increased frequency of different types of net distortions and the time necessary for pupilation were examined (Petersen and Petersen 1984). Since these insects may be common in ecosystems and are themselves an important source of food for fish, the effect of toxicants on them may have widespread repercussions. 

Petersen, L. B.-M. and R.C. Petersen. 1984. Effect of kraft pulp mill effluent and 4,5,6-trichloroguaiacol on the net spinning behaviour of Hydropsyche angustipennis (Trichoptera). Ecol. Bull. 36 68-74. 

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