Onomastus nigrimaculatus, Zhang & Li, 2005

Zhang, J. X. & Li, Daiqin, 2005, Four New And One Newly Recorded Species Of The Jumping Spiders (Araneae: Salticidae: Lyssomaninae & Spartaeinae) From (Sub) Tropical China, Raffles Bulletin of Zoology 53 (2), pp. 221-229 : 222-223

Onomastus nigrimaculatus , new species

( Fig. 1 A-F)

Holotype. – Male ( ZRC •ARA•494), Mingfeng Valley (18°44.635'N 108°50.667'E), Jianfengling National Park, Hainan Province, China, coll. D. Li, 15 Dec.2003.

Paratypes. – 1 male ( ZRC •ARA•495), same data as holotype ; 1 male ( ZRC •ARA•496) ( OS 001 /LD 2003), Mingfeng Valley (18°44.635'N 108°50.667'E), Jianfengling National Park, Hainan Province, China, 15 Dec.2003 ; 1 male ( ZRC •ARA•497) ( OS 022 / LD 2003), Mingfeng Valley (18°44.635'N 108°50.667'E), Jianfengling National Park, Hainan Province, China, 15 Dec.2003 ; 1 female ( ZRC •ARA•498) ( OS 008 /LD 2003), Mingfeng Valley (18°43.016'N 108°50.228'E), Jianfengling National Park, Hainan Province, China, 14 Dec.2003 ; 1 female ( ZRC •ARA•499) ( OS 033 / LD 2003), Mingfeng Valley (18°44.635'N 108°50.667'E), Jianfengling National Park, Hainan Province, China, 15 Dec.2003 ; 1 female ( ZRC •ARA•500)( OS 009 /LD 2003), Tian Chi (18°43.982'N 108°52.186'E), Jianfengling National Park , Hainan Province, China, 13 Dec.2003 ; 2 females and 2 males ( ZRC •ARA•501) ( ONO 002 /LD 2004), Mengla Natural Reserve (21°37.63'N 101°35.22'E), Pubang, Mengla County, Yunnan Province, China, coll. D. Li, 7 May.2004 .

Diagnosis. – The new species resembles Onomastus complexipalpis Wanless, 1980 ( Wanless, 1980b: 187, Fig. 4 ) in the shape of male palp, but can be distinguished from the latter in abdomen with pairs of dark spots dorsally ( Fig. 1A ); median apophysis of male palp wide in basal part, with a middle curved flange, and spur of embolic guide shorter and wider ( Fig. 1 B-D). It is also similar to Onomastus nigricaudus Simon, 1900 ( Wanless, 1980b: 181, fig. 1A-G) in male palp with a femoral apophysis, but differs from the latter in abdomen with pairs of dark spots dorsally ( Fig. 1A ); median apophysis of male palp not branched, with distal part thin and dagger shaped, spur of embolic guide wide ( Fig. 1 B-D); female epigynum with a median septum which widened posteriorly, and spermatheca connected with an oval structure anteriorly, which is doubted to be the copulatory duct ( Fig. 1E, F ). It can also be distinguished from Onomastus kanoi Ono, 1995 ( Ono, 1995: 157, figs. 16-21) by the long and thin distal part of median apophysis, smaller embolic guide, larger spur of embolic guide and blunt femoral apophysis of male palp ( Fig. 1 B-D).

Description. – Males. Total length 4.25-4.70. Length of holotype 4.60: cephalothorax 2.20 long, 1.45 wide, 1.05 high; abdomen 2.25 long, 0.90 wide. Carapace ( Fig. 1A ) pale yellow, eye area grayish. Fovea indistinct. Eye sizes: AME 0.50, ALE 0.30, PME 0.03, PLE 0.25. First eye row 1.00 wide, second row 1.45 wide, third eye row 1.10 wide, fourth eye row 0.96 wide, eye area 1.09 long. Clypeus height 0.16. Chelicerae, endites, labium and sternum pale yellow. Chelicerae with 5 teeth on promargin and 8-10 denticles on retromargin. Endites, labium and sternum yellowish. Coxae and trochanters of legs yellowish, other segments deeper in colour. Legs with some long spines and hairs. Spination of leg I: metatarsi v 4-2-0, p 1-0-0, r 1-0-0; tibiae v 4-4-4, p 1- 0-0, r 1-0-0, d 1-1-0; patellae v 0-1-0, p 0-1-0, r 0-1-0; femora p 0-0-1, r 0-0-1, d 1-1-1. Measurements of palp and legs: palp 2.50 (0.80+0.38+0.28+1.04); I 6.03 (1.65+2.45+1.30+0.63), II 5.27 (1.50+2.08 +1.16+0.53), III 5.55 (1.60+1.75+1.60+0.60), IV 6.90 (1.90+2.20+2.05+0.75). Leg formula: 4132. Abdomen long oval and white yellow, with some short hairs; dorsum with two pairs of dark patches. Subtegular apophysis (y) of palpal organ ( Fig. 1 B-D) long and finger shaped; median apophysis large with its distal part long and dagger-like; embolic guide (eg) terminating with a large spur (s).

Females. Total length 4.60-4.72. A female total length 4.60: cephalothorax 2.05 long, 1.30 wide, 1.15 high; abdomen 2.65 long, 1.00 wide. Eye sizes: AME 0.50, ALE 0.30, PME 0.04, PLE 0.22. First eye row 1.00 wide, second row 1.43 wide, third eye row 1.04 wide, fourth eye row 0.95 wide, eye area 1.14 long. Clypeus height 0.08. Retrolateral surface of distal femur I, prolateral and retrolateral surface of distal tibiae with a black patch respectively. Spination of leg I: metatarsi v 4- 2-0, p 1-0-0, r 1-0-0; tibiae v 4-4-4, p 1-0-0, r 1-0-0, d 0-1- 0; patellae v 0-1-0, r 0-1-0; femora p 0-0-1, r 0-0-1, d 1-1- 1. Measurements of legs: I 6.45 (1.85+2.75+1.30+0.55), II 5.45 (1.65+2.10+1.20+0.50), III 5.50 (1.55+1.80+1.60+0.55), IV (1.85+2.20+2.05+0.60). Leg formula: 4132. Other characters similar to those of male. Median septum of epigynum ( Fig. 1E, F ) widened posteriorly, spermatheca small.

Etymology. – The specific name is from the Latin “nigri+maculatus”, and refers to the dorsal dark patches on abdomen.

Figures

Fig. 1. Onomastus nigrimaculatus, new species. A, male; B, left palp, prolateral view (the black arrow refers to the median apophysis, and the white arrow refers to the subtegular apophysis); C, same, retrolateral view; D, same, ventral view (the black arrow refers to the spur of embolic guide, and the white arrow refers to the embolic guide); E, epigynum, ventral view; F, same, dorsal view. Scales: A = 1.0 mm, B-D = 0.2 mm, E, F = 0.1 mm.

Fig. 4. Portia taiwanica, new species. A, male; B, left palp, ventral view; C, same, retrolateral view; D, same, dorsal view; E, cheliceral teeth of female, retrolateral view; F, epigynum, ventral view; G, same, dorsal view. Scales: A = 1.0 mm, B-G = 0.2 mm.