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AQUATIC INSECTS 



Fig. 1 86. — Fish-fly, Chauliodes pectinicornis: i, 

 lar\-a; 2, adult. 



The adult of the common species Chauliodes pectinicornis 

 (Fig. 186) is cinnamon color, shaded and streaked with yellow, 

 and the wings are gray-brown wnth an incomplete band and 

 spots of white. The masses of reddish brown eggs, each mass 

 containing from 1000-2000 eggs, are deposited on leaves or 

 branches overhanging the water. Thirt}^ or more of these 

 egg masses have been found clustered together within a radius 

 of two feet on a rock a couple of feet above the stream. The 

 eggs are oval and lie with the long axis parallel to the surface, 

 each egg bearing a little knob-like projection. 



Family Sisyridce 



Spongilla-fiies 



Adult Spongilla- flies are small, smoky brown or variegated 

 fou --winged insects (Fig. 187, 2) that are little known except 

 to the specialist. 



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