Bembidion levigatum Say, 1823

Maddison, David R., 2020, Shards, sequences, and shorelines: two new species of Bembidion from North America (Coleoptera, Carabidae), ZooKeys 1007, pp. 85-128 : 85

Bembidion levigatum Say

Bembidium levigatum Say, 1823: 84. Lectotype female in MNHN, designated by Lindroth and Freitag (1969). Type locality Missouri.

Bembidion laevigatum delawarense Casey, 1924: 24. Holotype male in USNM (type number 36814), examined. Type locality Pennsylvania.

Diagnosis and geographic distribution.

Adults of this species are large and distinctively wide, with a broad, rounded prothorax (Fig. 8A ), and with a very shiny dorsal surface, with a green or bluish metallic reflection. The clypeus, frons, anterior corner of the prothorax, and all elytral intervals have long setae in addition to the standard set in Bembidion ; the prosternum has four or more setae. Aedeagus as in Fig. 9A, B . A very widespread species, found throughout most of the eastern United States and a small region of southern Canada, from Maine to Florida, north and west to Alberta and Montana, south to Utah, New Mexico, Texas, and Mexico ( Bousquet 2012). I have also seen specimens from the Grand Canyon in northern Arizona (two specimens in MSBA labeled "USA AZ Coconino Co Grand Canyon Nat. Park, N36.77 W111.655 RMBL 29-30 August 2002 coll. Cobb, Brantley, Lightfoot").

Figures

Figure 8. Adult males of subgenus Bembidion Hydrium A Bembidion levigatum (voucher V 100820, from USA: Utah: Grand Co., Moab, Colorado River, 1190 m, 38.5739 ° N, 109.5769 ° W) and B B. mimbres (a paratype from the type locality, voucher V 101458). Scale bars: 1 mm.

Figure 9. Male genitalia of subgenus Bembidion Hydrium A B. levigatum (voucher DNA 1693, Virginia: Danville City Co., Danville) B B. levigatum (voucher DNA 2343, Texas: Bastrop Co., Colorado River near Utley) C B. mimbres (voucher DNA 2134, USA: New Mexico: Grant Co., Gila River, Billings Vista) D B. mimbres (voucher DNA 2135, USA: New Mexico: Grant Co., Gila River, Billings Vista). Scale bar: 0.1 mm.