Achaius sabahensis nov. sp. (Figs 2A–D) Holotype . (♀) Malaysia: Sabah, Kinabalu Park Head Q., 8–11.iii.1987, c 1600 m, Malaise trap 1, C. van Achterberg, RMNH´87 (Leiden). Description . ♀. Body length 10.5 mm. Head . Flagellum with 40 flagellomeres, slender, almost filiform; 1 st flagellomere 3.7 × longer than wide, widest flagellomeres 1.2 × longer than wider. Temple rather long, distinctly and linearly narrowed behind eye (fig. 2B). OED 1.0 × and OOD 1.1 × ocellar diameter. Frons smooth ventrally, transversely rugose-punctate dorsally. Face densely punctate, shining. Clypeus almost flat, with sparse punctures; apical margin sharp and slightly concave (fig. 2A). Mandible long, with two teeth, ventral tooth smaller than dorsal one. Malar space 1.2 × as long as width of mandibular base. Gena with sparse fine punctures. Genal carina reaching hypostomal carina away from mandibular base. Mesosoma . Side of pronotum densely punctate dorsally, with irregular rugae ventrally. Notaulus indistinct. Mesoscutum finely and densely punctate, slightly shining. Mesopleuron densely punctate and finely striate ventrally, densely punctate dorsally; speculum smooth. Metapleuron rugose-punctate; juxtacoxal carina present. Scutellum moderately elevated, about as long as wide, with fine sparse punctures; without lateral carina. Propodeum (fig. 2C) rugose, with distinct blunt apophysis; spiracle slit-shaped. Area basalis not carinated, without median tubercle. Area superomedia almost rectangular, 1.4 × longer than wide; costula absent. Hind coxa densely punctate, without scopa. Hind femur slender, densely punctate, 5.1 × longer than wide. Claws simple. Areolet pentagonal, frontal distance between veins 2rs-m and 3rs-m 5 × their diameter. Vein 1cu-a postfurcal by 3.0 × its width. Metasoma . Strongly amblypygous; hypopygium unmodified, with fine setae, reaching metasomal apex. 2 nd and 3 rd sternites with median folds. Postpetiole moderately widened, without latero-median carina; median field moderately elevated, finely rugose; lateral ...