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

(Figures 1 (a), 3(a), 4(a), 5(a), 6(a), 7, 11(a))

Xanthomantis flava Giglio-Tos, 1915: 53–54; Hebard 1920: 24; Giglio-Tos 1927: 146; Beier 1931: 12. Xanthomantis (Xanthomantis) flava: Beier 1935: 61; Beier 1937: 177; Ehrmann 2002: 365; Otte and Spearman 2005: 126. Pliacanthopus (Malayamantis) flavus: Koçak and Kemal 2008: 9; Schwarz and Konopik 2014: 147.

Type locality

Malaysia: North Borneo, Sandakan.

Material examined

4♂, Borneo, Sabah, Trus Madi Mt .; 5.443°N, 116.451°E; 1180 m; 6–9 April 2017; Chao Wu leg. (IZCAS).

Body small-sized, common characteristics same as for the genus. Juxtaocular bulge of head without black spot. Prothoracic tibiae armed with 12–13 postero-ventral spines, the spination pattern of which is iIiii(i)IiiiiiI (from proximal to distal, the same below) (Figure 5 (a)). Subgenital plate triangular, with concave apex, with similar-shaped styli of similar lengths (Figure 7 (b)). Cerci elongate, but not surpassing wings; last segment longest, with rounded apex (Figure 7 (c)). Ventral phallomere of external genitalia rhomboidal; sdpl short, with acute apex, folded to the ventral side (Figure 7 (a)).

Hebard (1920) recorded the distribution of this species in Singapore (Malay Peninsula) based on a female specimen. However, as pointed out by Schwarz and Konopik (2014), taking into account geographical factors, this record may belong to P. (M.) malayanus, while the distribution range of P. (M.) flavus is likely to be limited to only Borneo.

Measurements (length in mm)

Body (head to abdomen end): male 21.75–21.98; body (head to wings): male 24.05– 24.56; pronotum: male 4.45–4.78; fore femora: male 4.67–4.81; fore tibiae: male 3.85–3.91; hind femora: male 5.83–5.91; hind tibiae: male 6.18–6.26; hind tarsus: male 3.95–4.03; fore wing: male 15.85–16.31; hind wing: male 15.79–16.32.

Distribution

Malaysia: Borneo-N.