Taxonomic and nomenclatural notes on the centipede genera Chomatobius, Ityphilus, Hapleurytion, Plateurytion, and Steneurytion (Chilopoda : Geophilomorpha)

Based on critical analysis of published information, we revise and discuss the taxonomic circumscription, diagnosis and nomenclature of the chilopod genera Chomatobius Humbert & Saussure, 1870, Ityphilus Cook, 1899, Hapleurytion Verhoeff, 1940, Plateurytion Attems, 1909 and Steneurytion Attems, 1909. Hapleurytion and Plateurytion are raised to the genus rank for the first time, and Plateurytion is recognised as the replacement name for Eurytion Attems, 1903, which is a junior homonym of Eurytion Jaennicke, 1867 (Diptera). The following synonymies are new: Chilerium Chamberlin, 1955 = Plateurytion Attems, 1909; Pachymeroides Chamberlin, 1920 = Zelanion Chamberlin, 1920 = Steneurytion Attems, 1909; Geophilus schauinslandi Attems, 1903 = Geophilus antipodum Pocock, 1891, following fixation of a lectotype for the former in this paper. The following generic combinations are new: Chomatobius auximus (Chamberlin, 1938), C. bakeri (Chamberlin, 1912), C. euphorion (Crabill, 1953), C. minor (Chamberlin, 1912) and C. minor arizonicus (Chamberlin, 1925), all from Gosiphilus Chamberlin, 1912; Ityphilus boteltobogensis (Wang, 1955), I. microcephalus (Brölemann, 1909) and I. tenuicollis (Takakuwa, 1934), all from Thalthybius Attems, 1901; Hapleurytion aporopus (Attems, 1922), from Eurytion Attems, 1903; Plateurytion badiceps (Attems, 1909), P. brevis (Verhoeff, 1937), P. dentatus (Attems, 1909), P. dolichocephalus (Attems, 1928), P. gracillimus (Verhoeff, 1937), P. heurtaultae (Pereira, 2006), P. kalaharinus (Attems, 1909), P. kalaharinus elongatus (Verhoeff, 1937), P. lethifer (Crabill, 1968), P. mumbwae (Dobroruka, 1969), P. paucipes (Lawrence, 1955), P. quadridentatus (Lawrence, 1955), P. sabulosus (Attems, 1909), P. transvaalicus (Lawrence, 1966), P. trichopus (Attems, 1928) and P. yungarum (Pereira, 2005), all from Eurytion Attems, 1903; P. dudichii (Verhoeff, 1940), from Schizotaenia Cook, 1896; P. gracilis (Gervais, 1849), P. metopias (Attems, 1903), P. michaelseni (Attems, 1903) and P. tenebrosus (Meinert, 1886), all from Geophilus Leach, 1814; P. mundus (Chamberlin, 1955) and P. zapallar (Chamberlin, 1955), both from Chilerium Chamberlin, 1955; Steneurytion antipodum (Pocock, 1891), from Geophilus Leach, 1814; S. dux (Chamberlin, 1920) and S. hawaiiensis (Chamberlin, 1953), both from Zelanion Chamberlin, 1920; S. incisunguis (Attems, 1911) and Steneurytion mjoebergi (Verhoeff, 1925), both from Eurytion Attems, 1903.