Bolivaritettix apterus ( Rehn, 1904 )

Bolivaritettix apterus ( Rehn, 1904) View in CoL

( Figs 7 View FIGURE 7 , 8 View FIGURE 8 )

Mazarredia aptera Rehn, 1904: 663 View in CoL — Hancock, 1907a: 43; Kirby, 1910: 25.

Hyboella siebersi Günther, 1935: 260 View in CoL — Günther, 1939: 79; Blackith, 1992: 7.

Bolivaritettix apterus ( Rehn, 1904) View in CoL — Günther, 1939: 79; Günther, 1942: 343; Blackith, 1992: 7; Deng et al., 2010: 46.

Type material examined (only images). • ♀ syntype (of Hyboella siebersi ); INDONESIA, Kalimantan; “ West Borneo, Midden ”; 19 October 1925; coll. H.C. Siebers; 1935 4; 177; DORSA D005XF01 ( SMTD) • ♂ syntype (of Hyboella siebersi ); INDONESIA, Kalimantan; “West Borneo, Midden”, [near border of Koetai and Beraoe ]; 17 October 1925; coll. H.C. Siebers; 171 ( RMNH) .

New material examined. EAST MALAYSIA; Sabah State • 1♀; Bukit Hampuan ; N5.99651 E116.67594, 936.8±7.0 m.a.s.l.; 3 November 2023, 20h07; on tree trunk; coll. M.K. Tan et al.; SBH.23.134 ( FRC) GoogleMaps • 1♂; Bukit Hampuan ; N5.99258 E116.67004, 986.6± 9.8 m.a.s.l.; 4 November 2023, 18h44; on grass near ground; coll. M.K. Tan et al.; SBH.23.147 ( FRC) GoogleMaps • 1♀; Maliau Basin , trail from Agathis–Nepenthes Camps at 2-km mark; N4.70797 E116.89475, 985.6± 9.5 m.a.s.l.; 12 November 2024, 19h29; on trunk of small tree; coll. M.K. Tan; SBH.24.47 ( ZRC) GoogleMaps • 1♂; Maliau Basin , trail from Agathis–Nepenthes Camps at 2-km mark; N4.70840 E116.89452, 954.2± 9.5 m.a.s.l.; 12 November 2024, 19h58; on tree trunk; coll. M.K. Tan; SBH.24.49 ( ZRC) GoogleMaps • 1♀; Maliau Basin , trail from Agathis–Nepenthes Camps at 2-km mark; N4.70851 E116.89444, 956.2± 9.9 m.a.s.l.; 12 November 2024, 20h08; on tree trunk; coll. M.K. Tan; SBH.24.50 ( ZRC) GoogleMaps • 1♀; Maliau Basin , trail from Agathis–Nepenthes Camps at 2-km mark; N4.70734 E116.89536, 955.9± 7.9 m.a.s.l.; 12 November 2024, 18h26; on tree trunk; coll. M.K. Tan; SBH.24.40 ( ZRC) GoogleMaps • 1♀; Sinipung Hill , near Long Pasia; N4.43620 E115.72344, 1311.0± 7.3 m.a.s.l.; 20 November 2024, 16h46; on trunk of huge tree; coll. M.K. Tan; SBH.24.167 ( ZRC) GoogleMaps • 1♂; Sinipung Hill , near Long Pasia; N4.43459 E115.72325, 1284.0± 9.2 m.a.s.l.; 20 November 2024, 15h45; among leaf litter; coll. M.K. Tan; SBH.24.162 ( ZRC) GoogleMaps • 7♂, 2♀; Meligan (P28 a.k.a. pt 2); N4.57485 E115.73430, 1359.0± 6.2 m.a.s.l.; 23 November 2024, 20h42; on tree trunk; coll. M.K. Tan; SBH.24.239–247 ( ZRC) GoogleMaps • 1♂; Sinipung Hill , near Long Pasia; N4.44622, E115.7143, 1563 m; 21 November 2024, day; leaf litter; coll. T. Robillard; TR24-160 ( MNHN) GoogleMaps • 1♂; Maliau Basin , trail from Agathis–Nepenthes Camps at 2-km mark; N4.70723 E116.89538, 954 m; 12 November 2024, day; leaf litter; coll. C. Jouault; TR24-55 ( MNHN) GoogleMaps • 1♂; Maliau Basin , trail from Agathis–Nepenthes Camps at 2-km mark; N4.70723, E116.89538, 954 m; 16 November 2024, day; leaf litter; coll. T. Robillard; TR24-98 ( MNHN) GoogleMaps • 2♀, 2♂; Maliau Basin , trail from Agathis–Nepenthes Camps at 2-km mark; N4.70723 E116.89538, 954 m; 16 November 2024, day; leaf litter; coll. T. Robillard; TR24-43 ( MNHN) GoogleMaps • 3 ♀; forest near Meligan village ; N4.67986 E115.68787, 863 m (GPS24SA16); 24 November 2024, day; leaf litter; coll. T. Robillard; TR24-201 ( MNHN) GoogleMaps .

Remarks. We observed two colour forms of this species: the darker and lighter form. While the darker form is generally dark grey, including head, pronotum and legs, the lighter form differs by the head and pronotal disc orange brown (its pronotum disc at the apex mottled with some black parts) and the legs generally with more pale rings. The syntypes appear to be of a darker form. However, the lighter form appears to be more commonly seen. In Meligan (SBH.24.239–2247), both dark and light forms were found co-occurring on the same tree trunk ( Fig.7 View FIGURE 7 ).