Otostigmus aculeatus Haase, 1887
Otostigmus (O.) aculeatus Haase, 1887: 71
Otostigmus (O.) aculeatus —Attems, 1930: 148
Otostigmus (O.) aculeatus —Attems, 1938: 337
Otostigmus (O.) aculeatus —Attems, 1953: 138
Otostigmus (O.) aculeatus —Schileyko, 1992: 7
Otostigmus (O.) aculeatus —Schileyko, 1995: 83, fig. 11 Otostigmus (O.) aculeatus —Schileyko, 1998: 268 Otostigmus (O.) aculeatus —Schileyko, 2001: 430 Otostigmus (O.) aculeatus —Lewis, 2001: 28, figs 53–58 Otostigmus (O.) aculeatus —Chao & Chang, 2003: 2 Otostigmus (O.) aculeatus —Schileyko, 2007: 76, fig. 2
Otostigmus (O.) ziesel Schileyko, 1992: 10, figs 2b–d, synonymised by Schileyko (2007) Otostigmus (O.) ziesel —Schileyko, 1995: 85, fig. 13
Otostigmus (O.) ziesel —Schileyko, 1998: 268
Otostigmus (O.) ziesel —Schileyko, 2001: 431
Previous records. QUANG NINH (Hon Gai, Ha Long; Dong Kho Island); HAI PHONG (Cat Ba NP); HA NOI (Ba Vi NP); HOA BINH (Mai Chau District); VINH PHUC (Tam Dao NP); NINH BINH (Cuc Phuong NP); QUANG NAM (Cu Lao Cham Island); KON TUM (Buon Luoi); GIA LAI (An Khe District); DONG NAI (Ma Da; Cat Tien NP); Tho Chu Island; Matau?? (Attems, 1938, 1953; Schileyko, 1992, 1995, 2007).
Remarks. Also known from Laos, Java, Hongkong, Taiwai, China. (Attems, 1930, 1938; Chao & Chang, 2003; Schileyko, 2007).