Piranthus mandai Maddison, sp. nov.

Maddison, Wayne P., Beattie, Imara, Marathe, Kiran, Ng, Paul Y. C., Kanesharatnam, Nilani, Benjamin, Suresh P. & Kunte, Krushnamegh, 2020, A phylogenetic and taxonomic review of baviine jumping spiders (Araneae, Salticidae, Baviini), ZooKeys 1004, pp. 27-97 : 27

Piranthus mandai Maddison, sp. nov. Figs 270-274

Type material.

Holotype male (specimen JK.91.05.31.0001), in LKCNHM, from Singapore: Mandai Track 15 Trail, 1.4106°N, 103.7783°E, J K H Koh 31 May 1991.

Etymology.

Named for the type locality. Other names: In lab notebooks the informal code for this species was “SGOMG”.

Diagnosis.

In colouration similar to P. planolancis , browns and blacks, but with body more compact and robust, as in P. bakau and P. kohi . Embolus with only a small loop before proceeding distally, and thus P. mandai is second in sequence from least to most rotated embolic bases: P. kohi (Fig. 255 ), P. mandai (Fig. 270 ), P. planolancis (Nafin et al. 2020), P. bakau (Fig. 237 ).

Description.

Male (holotype, specimen JK.91.05.31.0001). Carapace length 2.7; abdomen length 2.5. Carapace with rugose surface, black and dark brown, with a sparse covering of narrow scales that is more or less uniform: there is no bare patch beside the PLE, and no distinct three vertical thoracic lines, but there is a slight condensation of scales into a single vertical thoracic line, similar to that in P. bakau . Clypeus narrow and dark. Chelicerae vertical, dark, with a few pale scales basally. Palp brown. Palp similar to that of P. planolancis , but RTA much shorter (Figs 270-272 ), the shortest known among Piranthus . Legs light to dark brown, with indistinct markings (Figs 273 , 274 ) similar to those of P. planolancis ; darkest in the femur, patella, and tibia of the first leg, and the femora of the other legs. Abdomen brown above, lacking the transverse bands of P. bakau and P. kohi , but with the dark end of the abdomen (Fig. 274 ).

Figures

Figures 270 - 274. Piranthus mandai sp. nov., male holotype (specimen JK. 91.05.31.0001) 270 left palp, prolateral view 271 same, ventral view 272 same, retrolateral view 273 prosoma 274 abdomen. Scale bars: on palp 0.1 mm; on body 1.0 mm.

Figures 255 - 269. Piranthus kohi sp. nov. 255 male left palp, prolateral view (holotype AS 19.1813) 256 same, ventral view 257 same, retrolateral view 258 epigyne, ventral (specimen JK. 12.04.11.0032) 259 Vulva, dorsal 260 - 265 holotype 266 male holotype left fourth patella and tibia, dorsal view 267 female left fourth patella and tibia, dorsal view (specimen JK. 19.07.19.0001) 268 female JK. 19.07.19.0001 269 Female JK. 12.04.11.0032 (photograph Joseph K. H. Koh). Scale bars: on genitalia 0.1 mm; on bodies and legs 1.0 mm.

Figures 237 - 254. Piranthus bakau sp. nov. 237 male left palp, prolateral view (holotype SWK 12 - 0561) 238 same, ventral view 239 same, retrolateral view 240 epigyne, ventral (specimen AS 19.2895) 241 vulva, dorsal 242 male JK. 11.04.17.0040 (photograph Joseph K. H. Koh) 243 - 245 male holotype (SWK 12 - 0561) 246 male holotype left fourth patella and tibia, dorsal view (right leg digitally flipped to appear as left) 247 - 254 female specimen AS 19.2895 247 left fourth patella and tibia, dorsal view 248 left first leg, prolateral view 249 adult female prosoma 250 adult female abdomen 251 - 254 same specimen while immature. Scale bars on genitalia 0.1 mm; on bodies and legs 1.0 mm.