Phintella pygmaea ( Wesołowska, 1981 ), TRU-JS

Wang, Cheng, Mi, Xiao-Qi, Wang, Wei-Hang, Gan, Jia-Hui, Irfan, Muhammad, Zhong, Yang & Peng, Xian-Jin, 2023, Notes on twenty-nine species of jumping spiders from South China (Araneae: Salticidae), European Journal of Taxonomy 902, pp. 1-91 : 40-43

Phintella pygmaea ( Wesołowska, 1981)

Figs 24–25 , 59

Euophrys pygmaea Wesołowska, 1981: 49 , figs 11–14 (D ♀, female holotype, not examined).

Phintella pygmaea – Peng 2020: 306, fig. 219a–b (D ♀). For full reference list see World Spider Catalog (2023).

Diagnosis

The male of Phintella pygmaea ( Wesołowska, 1981) resembles that of P. arcuata Huang, Wang & Peng, 2015 in having a similar habitus and palp, but it can be distinguished by: (1) the lamellar process being longer than wide ( Fig. 24A ), whereas wider than long in P. arcuata ( Huang et al. 2015: figs 1c, 3a); (2) the embolus being straight in ventral view ( Fig. 24A ), whereas slightly curved medially in P. arcuata ( Huang et al. 2015: figs 1c, 3a). The female also resembles that of P. arcuata , but it can be easily distinguished by the proximal half of the copulatory ducts being horizontally extended ( Fig. 25A–B ), whereas diagonally extended in P. arcuata ( Huang et al. 2015: figs 4b, 5a).

Material examined

CHINA • 4 ♀♀, 5 ♂♂; Guangdong, Guangzhou City, Baiyun District, Baiyun Mountain ; 23°11.95′ N, 113°17.58′ E; 29 m a.s.l.; 3 Jul. 2019; W.H. Wang leg.; TRU-JS 0254–0262 • 1 ♀; Guizhou, Yanhe County, Ketian Township, Hongxi Village ; 28°50.64′ N, 108°11.20′ E; 538 m a.s.l.; 23 Jun. 2013; X.Q. Mi et al. leg.; TRU-JS 0263 • 1 ♀; Libo County, Dongtang Township, Yaosuo Village , Maolan National Nature Reserve ; 25°16.37′ N, 108°02.97′ E; 550 m a.s.l.; 7–8 Aug. 2013; X.Q. Mi et al. leg.; TRU-JS 0264 • 1 ♂; Hainan, Ledong County, Jianfeng Township, Jianfengling National Nature Reserve , Yulingu ; 18°44.79′ N, 108°55.76′ E; 634 m a.s.l.; 15 Apr. 2019; C. Wang and Y.F. Yang leg.; TRU-JS 0265 .

Description

Male (TRU-JS 0258)

MEASUREMENTS. Total length 4.01. Carapace 2.03 long, 1.67 wide. Abdomen 1.97 long, 1.33 wide. Eye sizes and interdistances: AME 0.45, ALE 0.24, PLE 0.22, AERW 1.33, PERW 1.29, EFL 0.89. Legs: I 5.94 (1.66, 0.93, 1.55, 1.24, 0.56), II 4.92 (1.46, 0.70, 1.25, 1.05, 0.46), III 5.21 (1.59, 0.63, 1.23, 1.27, 0.49), IV 5.47 (1.66, 0.65, 1.33, 1.34, 0.49).

HABITUS. Carapace dark brown, sub-oval, covered with white and dark scale-like setae on anterior margin, lateral sides, and area between ALEs and PLEs, with yellow area medially on thorax, and bearing white scale-like setae ( Fig. 25C, F ). Chelicerae with two promarginal teeth and one retromarginal tooth, and distal flange of fang ( Fig. 25G ). Legs pale to dark brown. Abdomen elongate-oval, dorsum dark brown, with three transverse bands formed by setae medially and arc-shaped yellow band posteriorly; venter slightly paler than dorsum ( Fig. 25C–D ).

PALP. Tibia longer than wide; RTA tapered, curved towards bulb distally and pointed apically in ventral view; bulb elongated; posterior lobe beak-shaped, with blunt terminus; tegular bump lamellar, medio-retrolaterally located; lamellar process almost semicircular; embolus straight, short ( Fig. 24 ).

Female (TRU-JS 0254)

MEASUREMENTS. Total length 4.23. Carapace 1.65 long, 1.25 wide. Abdomen 2.27 long, 1.56 wide. Eye sizes and interdistances: AME 0.38, ALE 0.22, PLE 0.21, AERW 1.21, PERW 1.19, EFL 0.83. Legs: I 3.14 (0.95, 0.53, 0.68, 0.60, 0.38), II 2.96 (0.93, 0.50, 0.60, 0.58, 0.35), III 3.59 (1.13, 0.50, 0.75, 0.83, 0.38), IV 3.92 (1.23, 0.53, 0.83, 0.93, 0.40).

HABITUS. Similar to that of male except paler in color and having square carapace ( Fig. 25E ).

EPIGYNE. Almost oval, with bow-shaped basal plate; copulatory openings anterolaterally located; copulatory ducts horizontally extended at proximal half and then descending posteriorly to connect to dorsum of posterior edges of spherical spermathecae; fertilization ducts lamellar ( Fig. 25A–B ).

Distribution

China (Guangdong, Guizhou, Hainan) ( Fig. 59 ).

Figures

Fig. 24. Male palp of Phintella pygmaea (Wesołowska, 1981) (TRU-JS 0258). A. Ventral view. B. Retrolateral view. C. Dorsal view. Abbreviations: see Material and methods. Scale bars = 0.1 mm.

Fig. 25. Phintella pygmaea (Wesołowska, 1981). A–B, E. ♀ (TRU-JS 0254). C–D, F–G. ♂ (TRU-JS 0258). A. Epigyne, ventral view. B. Vulva, dorsal view. C–E. Habitus. C. Dorsal view. D. Ventral view. E. Dorsal view. F. Carapace, frontal view. G. Chelicera, posterior view. Abbreviations: see Material and methods. Scale bars: A–B, G = 0.1 mm; C–F = 0.5 mm.

Fig. 59. Distributional records of Phintella fodingensis Wang, Mi & Peng sp. nov., P. pygmaea (Wesołowska, 1981), P. subpanda Wang, Mi & Peng sp. nov., P. wandae Wang, Mi & Peng sp. nov. and Ptocasius dian Wang, Mi & Peng sp. nov.