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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 /> <br />COLLECTION SITE Grape Creek, below Westc1iff, pool <br /> <br />ORDER FAMILY GENUS <br />Ephemeroptera Heptageniidae Heptagenia <br />Epherneroptera Tricorythidae Tri corythalus <br />Trichoptera Hydropsychidae Hydropsyche <br />Odonata Gornphidae Ophiogornphus <br />Co 1 eoptera Drippidae He1;chus <br /> <br />SPECIES <br /> <br />s everus <br /> <br />. <br /> <br />SAMPLE NO. 23 <br /> <br />. <br /> <br />NO. INDIVIDUALS <br /> <br />5 <br />6 <br />3 <br />1 <br />1 <br /> <br />. <br /> <br />~ <br />0) <br />w <br /> <br />-] <br />