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<br />AQUATIC INSECTS OF THE ARKANSAS RIVER BASIN IN COLORADO <br /> <br />DATE <br /> <br />August 15, 1974 <br /> <br />COLLECTION SITE Makenzie Bridge, below Canon City, above Florence <br /> <br />ORDER FAMILY GENUS <br />Di ptera Tipulidae Tipula <br />Arhynchobdellida Erpobde 11 i dae <br />Odonata Gomphidae Ophiogomphus <br />Trichoptera Hydropsychidae Hydropsyche <br />Ephemeroptera Heptageniidae Rhithrogena <br />Ephemeroptera Leptophlebiidae Choroterpes <br />Ephemeroptera Ephemerellidae Ephemerella <br />Plecoptera Perlidae Acroneuria <br />Di ptera Tendipedidae <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />.. <br /> <br />. <br /> <br />. <br /> <br />SPECIES <br /> <br />severus <br /> <br />i nermi s <br /> <br />. <br /> <br />SAMPLE NO. 80 <br /> <br />NO. INDIVIDUALS <br /> <br />4 <br />1 <br />1 <br />6 <br />3 <br />1 <br />3 <br />1 <br />3 <br /> <br />. <br /> <br />. <br /> <br />. <br />