Pliacanthopus Giglio-Tos, 1927

= Xanthomantis Giglio-Tos, 1915

= Polyacanthopus Hebard, 1920

= Oligocanthopus Beier, 1935

Three subgenera are currently recognized, two of them monotypic. The genus was previously known as Xanthomantis Giglio-Tos, 1915, but this name was preoccupied, so Uvarov (1940b) chose the next available name, of subgenus Pliacanthopus, as replacement, without further commenting on former nominate subgenus Xanthomantis . The nomenclatory change went unnoticed by subsequent authors (e. g. Beier 1964, 1968, Ehrmann 2002, Otte & Spearman 2005), until Koçak & Kemal (2008) confirmed the homonymy and proposed Malayamantis as replacement name for subgenus Xanthomantis . Monotypic subgenera endemic to Borneo. Arboricolous.

Pliacanthopus (Pliacanthopus) mantispoides (Hebard, 1920) §

Polyacanthopus mantispoides Hebard, 1920

Distribution. E Borneo: Sabah: Sandakan (Hebard 1920); Kalimantan: Mentawir (Beier 1958).

Pliacanthopus (Oligocanthopus) ornatus (Beier, 1935) §

Distribution. Borneo: Lebang Hara (Beier 1931b); Sabah: Danum Valley (CSUB).

Pliacanthopus (Malayamantis) flavus (Giglio-Tos, 1915) §

Xanthomantis flava Giglio-Tos, 1915

Distribution. Singapore (?), Borneo (Giglio-Tos 1915b, Hebard 1920, Ehrmann 2002; AFUW). Bornean records. Sarawak: Mt. Dulit (Beier 1937); Sabah: N Sabah (AFUW), Poring Hot Springs (SMNK),

Danum Valley (Helmkampf et al. 2007); Kalimantan: Lebang Hara (Beier 1931a), Bidang Menabai (Beier 1931a). Remarks. The Singapore specimen mentioned by Hebard (1920) is the only record known outside of Borneo.

It may possibly refer to P. (M.) malayanus Beier, 1931, which would make P. (M.) flavus a Bornean endemic.

Fam. Mantidae Latreille, 1802 1 Subfam. Angelinae Beier, 1935 1