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<br />AQUATIC INSECTS OF THE ARKANSAS RIVER BASIN IN COLORADO <br /> <br />DATE <br /> <br />September 27, 1974 <br /> <br />COLLECTION SITE Westcliff, GR-3, below discharge <br /> <br />ORDER <br /> <br />Trichoptera. <br />Ephemeroptera <br />Di ptera <br />Oligochaete (class) <br />Odonata <br />Ephemeroptera <br />Amphipoda <br />Di ptera <br />Di ptera <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />FAMILY <br /> <br />GENUS <br /> <br />Hydropsychidae <br />Tricorythidae <br />Tendipedidae <br /> <br />Hydro psyche <br />Tri corythodus <br /> <br />Gomphidae <br />Baetidae <br />Talitridae <br />Musci dae <br />Tipul idae <br /> <br />Ophiogomphus <br />Baetis <br />Hyalella <br />L imnophera <br />Hexatoma <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />SPECIES <br /> <br />severus <br /> <br />azteca <br />acquifrons <br /> <br />. <br /> <br />. <br /> <br />SAMPLE NO. <br /> <br />86 <br /> <br />NO. INDIVIDUALS <br /> <br />. <br /> <br />70 <br />24 <br />11 <br />11 <br />2 <br />10 <br />1 <br />1 <br />2 <br /> <br />. <br /> <br />. <br />