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<br />DATE July 16, 1974 <br /> <br />AQUATIC INSECTS OF THE ARKANSAS RIVER BASIN IN COLORADO <br /> <br />COLLECTION SITE Agular, Apishapa River, below discharge <br /> <br />ORDER <br /> <br />Hemiptera <br />Hemi ptera <br />Ephemeroptera <br />Ephemeroptera <br />Hemiptera <br />Diptera <br />Coleoptera <br />Pulmonata <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />FAMILY <br /> <br />Gerridae <br /> <br />Corixidae <br /> <br />Tricorythi dae <br />Baetidae <br /> <br />Ve1iidae (immature) <br /> <br />Tendipedidae <br /> <br />Dyti sci dae <br /> <br />Physidae <br /> <br />. <br /> <br />. <br /> <br />GENUS <br /> <br />Gerris <br /> <br />Tricorythodes <br />Ca11ibaetis <br /> <br />Derovate11us <br />Physa <br /> <br />. <br /> <br />. <br /> <br />SPECIES <br /> <br />fa 11 ax <br /> <br />. <br /> <br />SAMPLE NO. 38 <br /> <br />NO. INDIVIDUALS <br /> <br />. <br /> <br />2 <br />19 <br />13 <br />1 <br />3 <br />1 <br />1 <br />1 <br /> <br />. <br /> <br />. <br />