Two new linyphiid species from Borneo and Sumatra (Araneae: Linyphiidae) Author Tanasevitch, Andrei V. A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky prospekt 33, Moscow 119071, Russia tanasevitch@gmail.com text Raffles Bulletin of Zoology 2020 2020-06-10 68 473 478 journal article 55740 10.26107/RBZ-2020-0065 8c7e8306-bdf3-4971-a98b-577b5df0fa40 2345-7600 4576942 FE0535B0-749B-4DBC-BA58-DF05F62EA77A Pseudomicrocentria uncata , new species ( Figs. 1 , 7–11 ) Holotype . Male ( MHNG ), EAST MALAYSIA , Sabah , Mt Kinabalu N.P. , above Gunting Lagadan , 3,400 m a.s.l. , 19 May 1987 , coll. A. Smetana. Paratype . 1 male ( MHNG ), Mt Kinabalu N.P. , base of St. John’s Peak , 3,950–4,000 m a.s.l. , 20 May 1987 , coll. A. Smetana [b62] . Diagnosis. Pseudomicrocentria uncata , new species , is characterised by a long and narrow radix abruptly bent in the middle. The species is similar to P . simplex , originally described from the border between Singapore and mainland Malaysia , but it can easily be distinguished by the shape of the palpal tibia ( Fig. 10 cf. Fig. 12 ), as well as by the bent radix ( Fig. 8 cf. Fig. 13 ). Both Oriental species, P . simplex and P . uncata , new species , besides having differences in the genitalic structure, differ from their Afrotropical congener, P . minutissima , by the normal, not enlarged eyes. Etymology. The specific name is a Latin adjective, meaning “bent”, referring to the shape of the radix in the new species. Description. I describe the paratype here to avoid causing damage to the holotype . Somemeasurements of the holotype are given in brackets. Carapace and abdomen shapes, body and leg colouration of holotype are same as in paratype . Male paratype . Total length: 1.30 ( 1.28 in holotype ). Carapace unmodified (as in Fig. 1 ), 0.63 long, 0.48 wide (0.63 and 0.46 in holotype , respectively), pale greyish brown. Eyes normal, not enlarged, sulci absent. Chelicerae 0.30 long, mastidion absent. Legs pale brown. Leg I 1.53 long (0.43 + 0.20 + 0.35 + 0.30 + 0.25), IV 1.56 long (0.43 + 0.20 + 0.35 + 0.35 + 0.23). Chaetotaxy: 2.2.2.1. Length of spines 1–1.5 diameters of corresponding leg segment. TmI 0.48 ( 0.50 in holotype ). Metatarsus IV without trichobothrium. Palp ( Figs. 7–11 ): Tibia slightly elongated, with a small rounded process antero-retrolaterally. Paracymbium very small, L-shaped. Tegulum with a sharp outgrowth distally. Distal suprategular apophysis short, more or less transparent, with a small tooth at base. Median membrane reduced. Convector absent. Radix long, narrow, abruptly bent in the middle. Embolus very short, slightly curved. Abdomen ( Fig. 1 ) 0.65 long, 0.45 wide (0.63 and 0.48 in holotype , respectively), dark grey. Female unknown. Distribution. So far known only from Sabah, Indonesia .