Ktenostreptus costulatus Attems, 1914
Ktenostreptus costulatus Attems, 1914b: 684, figs 14–16, (OD). Ktenostreptus costulatus— Attems, 1914a: 289, (R).
Ktenostreptus costulatus— Carl 1917: 395, as a synonym of Ktenosteptus lankaensis . Ktenostreptus costulatus— Attems, 1936: 283, fig. 75, (R). Ktenostreptus costulatus— Attems, 1942: 74, 79, (R).
Ktenostreptus costulatus— Demange, 1961: 220, figs 311–321, (D). Ktenostreptus costulatus— Demange, 1969b: 269, (R).
Ktenostreptus costulatus— Demange, 1981: 64, (R).
Ktenostreptus costulatus— Jeekel, 2006: 36, (R).
Ktenostreptus scaberrimus Verhoeff, 1930: 202, figs 6–9, (OD); synonymized by Demange (1969b).
Records from Sri Lanka. Kandy (Attems, 1914a, 1936; Jeekel, 2006). Distribution. Only known from Sri Lanka.