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<br />DATE June 28, 1974 <br /> <br />AQUATIC INSECTS OF THE ARKANSAS RIVER BASIN IN COLORADO <br /> <br />COLLECTION SITE Upper Arkansas River, below highway bridge <br /> <br />ORDER <br /> <br />Trichoptera <br />Ephemeroptera <br />Ephemeroptera <br />Ephemeroptera <br />Ephemeroptera <br />Ephemeroptera <br />Ephemeroptera <br />Di ptera <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />FAMILY <br /> <br />GENUS <br /> <br />Hyd ropsych i dae <br /> <br />Heptageniidae <br /> <br />Heptageniidae <br />Ephemere 11 i dae <br /> <br />Baetidae <br /> <br />Ephemerellidae <br /> <br />Ephemerellidae <br /> <br />Tendipedidae <br /> <br />Arctopsyche <br /> <br />Epeorus (Ironopsis) <br /> <br />Cinygmula <br /> <br />Ephemerella <br />Baetis <br /> <br />Ephemerella <br /> <br />Ephemerella <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />SPECIES <br /> <br />grandis <br />unifonnis <br />coloradensis <br /> <br />doddsi <br /> <br />carsona <br /> <br />. <br /> <br />SAMPLE NO. 28 <br /> <br />NO. INDIVIDUALS <br /> <br />3 <br />22 <br />4 <br />3 <br />29 <br />1 <br />1 <br />1 <br /> <br />. <br /> <br />. <br /> <br />. <br />