Otostigmus astenus (Kohlrausch, 1878)
Branchiotrema astenon Kohlrausch, 1878: 70, fig. 6 Otostigmus (O.) astenus —Chamberlin, 1920: 13 Otostigmus (O.) astenus —Attems, 1930: 143, fig. 174 Otostigmus astenus —Attems, 1938: 337
Otostigmus astenus —Attems, 1953: 138
Otostigmus astenus —Schileyko, 1998: 268
Otostigmus astenus —Schileyko, 2001: 424 Otostigmus astenus —Lewis, 2001: 21, fig. 37 Otostigmus astenus —Chao & Chang, 2003: 2 Otostigmus astenus —Schileyko, 2007: 78 Otostigmus astenus —Lewis, 2007: 15
Otostigmus astenus —Decker, 2013: 18
Branchiotrema calcitrans Kohlrausch, 1878: 71
Branchiotrema luzonicum Kohlrausch, 1878: 71
Otostigmus barbouri Chamberlin, 1914: 386, figs 1–3, synonymised by Lewis (2002) Otostigmus barbouri —Lewis, 2002: 1691, figs 12–17 Otostigmus glaber Chamberlin, 1920: 12
Otostigmus glaber —Lewis, 2002: 1695, figs 26–33
Otostigmus moluccanus Chamberlin, 1914: 388, figs 6–7 Otostigmus (O.) moluccanus —Attems, 1930: 142
Otostigmus (O.) moluccanus —Schileyko, 1992: 7
Otostigmus (O.) moluccanus —Schileyko, 1995: 81, fig. 8 Otostigmus (O.) moluccanus —Schileyko, 1998: 268
Otostigmus (O.) moluccanus —Schileyko, 2001: 424, 429 Otostigmus moluccanus —Lewis, 2002: 1695, figs 23–25
Previous records. VINH PHUC (Tam Dao NP) (Schileyko, 1992).
Remarks. Also known from India; Nepal; Cambodia; Indonesia; Taiwan, Moluccas (Ternate); Fiji Islands; Hawaiian Islands; Tonga Islands; Solomon Islands; Bismarck Archipelago; Indonesia (West Papua region); Australia (Chamberlin, 1920; Attems, 1930, 1938; Lewis, 2002; Chao & Chang, 2003; Schileyko, 2007).