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<br />. <br /> <br />. <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 />DATE June 27, 1974 <br />COLLECTION SITE Grape Creek, above Westc1iff, pool <br /> <br />ORDER FAMILY GENUS SPECIES <br />Ephemeroptera Tri corythi dae Tricorythodus <br />Ephemeroptera Baetidae Baetis <br />Ephemeroptera Heptageniidae Heptagenia <br />Ephemeroptera Ephemere11idae Ephemere 11 a <br />Di ptera Tendipedidae <br /> <br />. <br /> <br />. <br /> <br />SAMPLE NO. 19 <br /> <br />NO. INDIVIDUALS <br /> <br />43 <br />1 <br />4 <br />1 <br />2 <br /> <br />. <br /> <br />..... <br />c:. <br />'-') <br />" <br />v' <br />