Bembidion (Metallina), Motschulsky, 1850

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 426

Subgenus Metallina Motschulsky, 1850

Leja Dejean, 1821: 17. Type species: Carabus celer Fabricius, 1792 (= Carabus lampros Herbst, 1784) designated by Desmarest (1851: 192). Etymology. From the Greek leia (smooth) [feminine]. The name was proposed by Johann Karl Megerle von Mühlfeld and made available by Dejean. Note. Regarding the type species designation, see Bousquet (2002b: 31).

Metallina Motschulsky, 1850a: 13. Unnecessary replacement name for Leja Dejean, 1821.

Diversity.

Northern Hemisphere, with seven species in the Nearctic (three species, of which two are adventive) and Palaearctic (six species) Regions.

Identification.

Lindroth (1963b: 254-258, as lampros group) covered all three species found in North America.

Nomenclatural Note.

All recent authors seen (e.g., Marggi et al. 2003: 251; Lorenz 2005: 218; Ortuño and Toribio 2005: 278; Maddison 2012: 545) used Metallina as the valid name for this subgenus despite that Leja is the oldest available name and is not a junior homonym of any genus-group names. I am following them but the case needs to be submitted to the Commission for a ruling.

Taxonomic Note.

According to Maddison (2012: 569), this group is closely related to subgenus Hydrium .