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<br />AQUATIC INSECTS OF THE ARKANSAS RIVER BASIN IN COLORADO <br /> <br />DATE August 15, 1974 SAMPLE NO. 74 <br />COLLECTION SITE Westcl iff, Grape Creek, GR-4, below sewage discharge <br />ORDER FAMILY GENUS SPECIES NO. INDIVIDUALS <br />Trichoptera Hydropsychi dae Hydropsyche 12 <br />Odonata Gomphidae Ophiogomphus severus 1 <br />Pulmonata Lymnaeidae Lymnaea 1 <br />Diptera Simuliidae 2 <br />Di ptera Ti pul i dae Hexatoma 3 <br />Diptera Tendipedidae 1 <br />Ephemeroptera Baetidae Baeti s 7 <br />Ephemeroptera Tricorythidae Tri corythodes 16 <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br />