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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 />August 7, 1974 <br /> <br />COLLECTION SITE <br /> <br />ORDER <br /> <br />Pulmonata <br />Archynchobdellida <br />Jlrnphipoda <br />Odonata <br />Di ptera <br />Ephemeroptera <br />Ephemeroptera <br />Hemi ptera <br />*Hemiptera (terrestrial) <br /> <br />Walsenburg, above sewage treatment discharge <br /> <br />FAMILY <br /> <br />GENUS <br /> <br />Physidae <br />Erpobdellidae <br />Talitridae <br />Gomphidae <br />Tendipedidae <br />Tri corythi dae <br />Baetidae <br />Veliidae <br /> <br />Physa <br /> <br />Hyal ell a <br />Ophiogomphus <br /> <br />Tricorythodes <br />Baetis <br /> <br />SPECIES <br /> <br />azteca <br />severus <br /> <br />fall ax <br /> <br />. <br /> <br />. <br /> <br />SAMPLE NO. 69 <br /> <br />NO. INDIVIDUALS <br /> <br />13 <br />1 <br />4 <br />1 <br />5 <br />4 <br />2 <br />3 <br />1 <br /> <br />. <br /> <br />...... <br />0') <br />C':l <br />o <br />