pygmaea Pocock, 1895:15 (31 December).

Syntypes (BMNH [Shelley 2002]); type locality: Amula, Guerrero, Mexico .

Original rank: species. Current rank and status: valid species of Arthrorhabdus Pocock, 1891 (Kraepelin 1903, Attems 1930, Bücherl 1942 a, Shelley 2002, Shelley & Chagas 2004).

Anatomical illustrations: Pocock (1895, pl. 2, figs. 8, 8a–8c), Shelley (2002, figs. 66–68).

Distribution: Arizona to Texas, USA, southward to Oaxaca, Mexico, and possibly Belize (Shelley & Chagas 2004). Maps: Shelley (2002, fig. 72), Shelley & Chagas (2004, fig. 1).

Remarks: S. pygmaea is also the type species, by original designation, of the monotypic genusgroup name, Arthrorhabdinus Verhoeff, 1907, which was proposed as a subgenus of Arthrorhabdus and synonymized under the latter by Attems (1930), Shelley (2002), & Shelley & Chagas (2004). The species was omitted by Bücherl (1974).