Helicorthomorpha luzoniensis (Peters, 1864), comb. n. Originally described from Luzon, without a more precise locality (Peters 1864), this species, previously considered dubious (Jeekel 1968), appears to actually represent a new senior subjective synonym of H. orthogona (Silvestri, 1898). The syntypes (1 ♂, 1 ♀), labelled "Bosoboso, Luzon, leg. Martens" (Moritz and Fischer 1978), have been revised and returned to the Museum für Naturkunde in Berlin as а lectotype (♂) and а paralectotype (♀). Lectotype designation is necessary to ensure the species to be based on male material. In addition, unlike the paralectotype, which is an incomplete female, the lectotype is complete. The name luzoniensis is preferred because of its priority, being in use in the last 50 years and thus not representing a nomen oblitum (Moritz and Fischer 1978). This widespread species, previously referred to as H. orthogona, is known to occur from China to New Guinea (Jeekel 2009). In the Philippines it has been recorded from Luzon and Mindanao islands (Wang 1951, Jeekel 1980b).