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<br />. <br /> <br />. <br /> <br />. <br /> <br />DATE <br /> <br />July 24, 1974 <br /> <br />COLLECTION SITE <br /> <br />ORDER <br /> <br />Trichoptera <br />Pl ecoptera <br />Ephemeroptera <br />Ephemeroptera <br />Ephemeroptera <br />Ephemeroptera <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />AQUATIC INSECTS OF THE ARKANSAS RIVER BASIN IN COLORADO <br /> <br />South Arkansas River, above quary at camp site bridge <br /> <br />FAMILY <br /> <br />GENUS <br /> <br />SPECIES <br /> <br />Rhyacophil idae <br />Perlodidae <br />Baetidae <br />Ephemere 11 i dae <br />Heptageniidae <br />Ephemerellidae <br /> <br />Rhyocophila <br /> <br />Isogenus <br />Baetis <br /> <br />Ephemerella <br /> <br />Cinygmula <br /> <br />Ephemerella <br /> <br />coloradensis <br />uniformis <br />infrequens <br /> <br />. <br /> <br />SAMPLE NO. 55 <br /> <br />. <br /> <br />NO. INDIVIDUALS <br /> <br />4 <br />5 <br />9 <br />1 <br />1 <br />3 <br /> <br />. <br /> <br />I-< <br />o <br />'-'I <br />C) <br />