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<br />DATE August 7, 1974 <br /> <br />COLLECTION SITE <br /> <br />ORDER <br /> <br />Odonata <br />Hemiptera <br />Ephemeroptera <br />Di ptera <br />Ephemeroptera <br />Coleoptera <br />Pulmonata <br />Jlrnphipoda <br />Archynchobdellida <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />AQUATIC INSECTS OF THE ARKANSAS RIVER BASIN IN COLORADO <br /> <br />Walsenburg, below sewage treatment discharge <br /> <br />FAMILY <br /> <br />GENUS <br /> <br />Gomphidae <br />Gerridae <br />Tricorythidae <br />Tendipedidae <br />Leptophlebiidae <br />Dryopi dae <br />Physidae <br />Talitridae <br />Erpobdellidae <br /> <br />Ophiogomphus <br />Gerris <br />Tricorhythodes <br /> <br />Pelanomus <br /> <br />Physa <br />Hyale11a <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />SPECIES <br /> <br />severus <br />remigis <br />fa 11 ax <br /> <br />azteca <br /> <br />. <br /> <br />SAMPLE NO. 68 <br /> <br />NO. INDIVIDUALS <br /> <br />2 <br />1 <br />6 <br />2 <br />1 <br />2 <br />17 <br />1 <br />2 <br /> <br />. <br /> <br />. <br /> <br />. <br />