Micrixys LeConte, 1854

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 608

Genus Micrixys LeConte, 1854

Eugnathus LeConte, 1853c: 375 [junior homonym of Eugnathus Schönherr, 1833]. Type species: Panagaeus distinctus Haldeman, 1852 by monotypy. Etymology. From the Greek eu (well, by extension large) and gnathos (jaw), probably alluding to the well-developed mandibles (" mandibulae crassae dilatatae ") of the adult [masculine].

Micrixys LeConte, 1854d: 220. Replacement name for Eugnathus LeConte, 1853. Etymology. From the Greek micros (small, little) and ixys (waist), probably alluding to the abrupt basal constriction of the pronotum (" thorax postice sensim valde angustatus sub-pedunculatus ", see LeConte 1853c: 375) of the adult [feminine].

Diversity.

Two species in temperate and tropical areas of the Nearctic (one species) and Neotropical (two species in Mexico) Regions.

Identification.

Van Dyke (1927b: 93) discussed the structural differences between the two species.