Orcevia mercuryi Yu, Maddison & Zhang, 2023

Yu, Kun, Maddison, Wayne P. & Zhang, Junxia, 2023, Taxonomic revision of Orcevia Thorell, 1890, with description of fifteen new species (Araneae, Salticidae, Euophryini), Zootaxa 5384 (1), pp. 1-79 : 12

Orcevia mercuryi Yu, Maddison & Zhang , sp. nov. (Ḇ氏ĸ尔¤)

Figs 4 , 156–172 , 276 , 287

Type material. Holotype: ♂ ( UBCZ; SWK12-0488 ; KYU-SAL600 ), MALAYSIA: Sarawak, Bako National Park, Ulu Assam Trail , 1.712– 1.713°N, 110.445– 110.448°E, 30–80 m elev., 8 March 2012, leg. W.P. Maddison, E.K. Piascik, A. Ang & C. Lee, WPM#12-005 . Paratype: 1♀ ( UBCZ; KYU-SAL601 ), same data as holotype .

Etymology. The specific epithet is in honor of Freddie Mercury (1946–1991), the leader of the British band “Queen”. Many classic rock songs he wrote accompanied the growth of the first author.

Diagnosis. It can be distinguished from all other congeners by its bowl-like extension on the retrolateral side of tip of RTA ( Fig. 169 ).

Description. Male (Holotype). Habitus as shown in Fig. 160 . Measurements of holotype: carapace length 1.77; abdomen length 1.38; measurements of eyes: AME 0.31, ALE 0.22, PME 0.08, PLE 0.19; measurements of legs: I 3.23 (1.06, 0.67, 0.66, 0.49, 0.35), II 2.38 (0.80, 0.43, 0.46, 0.38, 0.31), III 2.50 (0.88, 0.38, 0.42, 0.51, 0.31), IV 2.74 (0.90, 0.40, 0.55, 0.53, 0.36); leg formula 1432. Carapace red brown to dark brown and abdomen brown, with rather sparse and short pale setae dorsally, two flanks and posterior part of carapace and area around muscle impression of abdomen bare, upper edge of AME lens with small orange setae sticked on. Legs dark but proximal tibiae IV, proximal metatarsi III–IV and tarsi III–IV lighter, with sparse short and pale setae on dorso-distal femora, dorsal patellae, dorso-proximal tibiae and slightly on dorso-proximal metatarsi.

Palp ( Figs 162–164 ): embolus with many small grooves scored on basal part along embolic extension direction; RTA long and forward bending, lobe on tip of RTA rough, with many denticles on outer edge, embedded in bowl-like extension on tip of RTA.

Female. Habitus as shown in Fig. 161 . Measurements of paratype: carapace length 1.57; abdomen length 1.78; measurements of eyes: AME 0.33, ALE 0.22, PME 0.08, PLE 0.18; measurements of legs: I 2.51 (0.85, 0.52, 0.51, 0.28, 0.35), II 2.23 (0.76, 0.42, 0.42, 0.31, 0.32), III 2.46 (0.85, 0.35, 0.48, 0.43, 0.35), IV 2.85 (0.91, 0.39, 0.61, 0.57, 0.37); leg formula 4132. Body and legs dark, without obvious pale setae; dorsal abdomen relatively smooth, with three pairs of muscle impression, and slight indigo and purple reflection.

Epigynum ( Fig. 166 ): atria small and far from each other. Vulva ( Fig. 167 ): median part of copulatory ducts touched, covering inner margins of spermathecae in ventral view, bottom margin of copulatory ducts almost at same level to bottom margin of spermathecae; spermathecae subspherical, one bridge-like cutinized band connecting two fertilization ducts ( Fig. 172 ).

Distribution. Malaysia ( Sarawak).

Figures

FIGURES 1–12. Comparison of male palpal bulbs of some euophryines, in ventral view. 1–8. Orcevia spp. [O. bokoblin Yu, Maddison & Zhang sp. nov. (1), O. nietzschei Yu, Maddison & Zhang sp. nov. (2), O. jinping Yu & Zhang, sp. nov. (3), O. mercuryi Yu, Maddison & Zhang, sp. nov. (4), O. shuyuani Yu & Zhang, sp. nov. (5), O. zabkai Yu, Maddison & Zhang, sp. nov. (6), O. yahaha Yu, Maddison & Zhang, sp. nov. (7) and O. wuliang Yu & Zhang, sp. nov. (8)]; 9. Laufeia concava Zhang & Maddison, 2012; 10. Amoenema erhai Yu & Zhang, 2023; 11. Lokina nyuewa Yu & Zhang, 2023; 12. Chalcovietnamicus vietnamensis (Żabka, 1985). Black dotted lines indicate retrolateral edge of membrane between salticid radix and tegulum, white arrows point to the retrolateral extension, and yellow lines indicate the proximal margin of tegulum.

FIGURES 156–159. Living spiders of Orcevia mercuryi Yu, Maddison & Zhang, sp. nov., male holotype (156–157) and female paratype (158–159). Figures are copyright © 2015 W.P. Maddison, released under a Creative Commons Attribution (CC-BY) 3.0 license.

FIGURES 160–167. Orcevia mercuryi Yu, Maddison & Zhang, sp. nov., holotype male (160, 162–165) and paratype female (161, 166–167). 160–161. Habitus; 162–164. Palp; 165. Palpal femur; 166. Epigynum; 167. Vulva; in dorsal (160–161, 167), prolateral (163), retrolateral (164–165) and ventral (162, 166) view.

FIGURES 168–172. Orcevia mercuryi Yu, Maddison & Zhang, sp. nov., male palp (168), tip of RTA (169–170; with arrow indicates bowl-like extension of RTA), epigynum (171) and vulva (172; with arrow indicating the sclerotized band between fertilization ducts), in ventral (168–169, 171), retro-ventral (170) and dorsal (172) view. Abbreviations: AG, accessory gland; CD, copulatory duct; E, embolus; ED, embolic disc; FD, fertilization duct; LPT, lobe like protrusion of tegulum; pH, pro-ventral hump of male palpal tibia; S, spermatheca; SR, salticid radix; TL, tegular lobe.

FIGURES 274–286. Comparison of Orcevia spp., ventral view of palp (274–281) and retrolateral view of RTAs (282–286). 274, 282. O. deelemanae Yu & Zhang, sp. nov.; 275, 283. O. keyserlingi Thorell, 1890; 276. O. mercuryi Yu, Maddison & Zhang, sp. nov.; 277. O. pakse Yu & Zhang, sp. nov.; 278, 285. O. meinei Yu, Maddison & Zhang, sp. nov.; 279, 284. O. eucola Thorell, 1890, modified from Prószyński (1984); 280, 286. O. timburtoni Yu, Maddison & Zhang, sp. nov.; 281. O. proszynskii (Song, Gu & Chen, 1988). Black arrows indicate the lobe with small denticles on tip of RTA.

FIGURES 287–293. Orcevia spp., top view of tip of RTA (287–291; with arrows indicating the lobe with small denticles on tip of RTA) and pattern of female leg IV (292–293; with arrows indicating boundaries of melanic area). 287. O. mercuryi Yu, Maddison & Zhang, sp. nov.; 288, 293. O. meinei Yu, Maddison & Zhang, sp. nov.; 289. O. timburtoni Yu, Maddison & Zhang, sp. nov.; 290. O. deelemanae Yu, Maddison & Zhang, sp. nov.; 291. O. pakse Yu & Zhang, sp. nov.; 292. O. eucola Thorell, 1890, holotype.