A preliminary characterization of Bembidion perspicuum LeConte, with a reclassification of related species (Coleoptera, Carabidae) north of México Author Maddison, David Oregon State University, Corvallis, United States of America Author Swanson, Alexander Long Beach ,, text ZooKeys 2010 2010-04-13 43 43 15 31 journal article 10.3897/zookeys.43.390 524036ef-ebb0-4718-8a9b-1bb77b3c3709 1313–2970 576656 Bembidion perspicuum LeConte, 1848 Ochthedromus perspicuus LeConte, 1848: 466 . Type locality “ Rocky Mountains ”. Holotype male, in MCZ (type number 5510), external structure and aedeagus examined. Bembidion acomanum Casey, 1918: 59 . Type locality Jemez Springs, New Mexico , so restricted by Lindroth (1975) . Lectotype female, designated by Lindroth (1975) , in USNM (type number 36916), examined. Bembidion excursum Casey, 1918: 59 . Type locality Tucson , Arizona . Holotype female, in USNM (type 36915), examined. This species is known from Texas, Kansas, Colorado, New Mexico , Arizona, Utah, Nevada, California, and Oregon. Its range in México has not been examined. Specimens from northern California and Oregon are dark, with only elytral apices being pale. They are thus very similar in appearance to paler specimens of Bembidion lugubre , from which they are most readily distinguished by genitalic characters.