Loxandrus LeConte, 1853

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 487-488

Genus Loxandrus LeConte, 1853

Megalostylus Chaudoir, 1842: 855 [junior homonym of Megalostylus Schönherr, 1840]. Type species: Feronia recta Say, 1823 designated by Casey (1918: 325). Etymology (original). From the Greek megale (large) and stylos (pillar, by extension base), alluding to the robust first antennomere (" antennes ... 1er article plus gros que tous les autres ... fort long ") of the adult [masculine]. Note. Casey’s designation was intended for Loxandrus LeConte but since Loxandrus is a replacement name for Megalostylus Chaudoir, both have the same type species and the type fixation for either applies also to the other (ICZN 1999: Article 67.8).

Loxandrus LeConte, 1853a: 250. Replacement name for Megalostylus Chaudoir, 1842. Etymology. From the Greek loxos (slanting, by extension oblique) and andros (male), alluding to the obliquely truncate male protarsomeres 1-3 (" antici maris articulis ... valde obliquis ") of the species [masculine].

Diversity.

About 210 species in the Nearctic (44 species), Neotropical (about 150 species), and Australian (about 20 species) Regions.

Identification.

Allen (1972) revised the North American species though he left out more than 20 species because their type series were not located or included only females. These species were studied by Bousquet (2006a) leading to several new synonymies.