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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 <br /> <br />September 27, 1974 <br /> <br />COLLECTION SITE <br /> <br />Westcliff, GR-l, above discharge <br /> <br />ORDER FAMILY GENUS <br />Ephemeroptera Tri corythidae Tri corythodus <br />Di ptera Rhagionidae Atheri x <br />Trichoptera Hyd ropsyc h i dae Hydropsyche <br />Tri choptera Hydropsychi dae Cheumatopsyche <br />Ephemeroptera Heptageniidae Ci nygma <br />Ephemeroptera Leptophlebiidae Choroterpes <br />Pl ecoptera Perlidae Acroneuria <br />Oligochaete (class) <br />Ephemeroptera Baetidae Baetis <br />Co 1 eoptera Dryopidae Helichus <br />Co 1 eoptera Elmidae Optioservus <br /> <br />SPECIES <br /> <br />variegata <br /> <br />. <br /> <br />SAMPLE NO. <br /> <br />. <br /> <br />. <br /> <br />~ <br />c:n <br />C) <br />C) <br /> <br />85 <br /> <br />NO. INDIVIDUALS <br /> <br />4 <br />1 <br />7 <br />6 <br />5 <br />7 <br />1 <br />1 <br />3 <br />2 <br />3 <br />