Scaphinotus (Irichroa), Newman, 1838

Bousquet, Yves, 2012, Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico, ZooKeys 245, pp. 1-1722 : 159

Subgenus Irichroa Newman, 1838

Irichroa Newman, 1838a: 385. Type species: Cychrus viduus Dejean, 1826 by monotypy. Etymology. From the Latin iris (rainbow) and the Greek chroa (surface of the body), probably alluding to the lustre present on the dorsal surface of adults of the sole species in the hands of Newman [feminine].

Anabolus Gistel, 1857: 90. Type species: Cychrus viduus Dejean, 1826 by original designation.

Megaliridia Casey, 1920: 175. Type species: Cychrus viduus Dejean, 1826 designated by Bousquet and Larochelle (1993: 79). Etymology. From the Greek mega (large) and iridos (rainbow) [feminine].

Diversity.

Three eastern North American species.

Identification.

There is no published key for the identification of these species.