Hypselistes australis Saito and Ono, 2001

Seo, Bo Keun, 2018, New species and records of the spider families Pholcidae, Uloboridae, Linyphiidae, Theridiidae, Phrurolithidae, and Thomisidae (Araneae) from Korea, Journal of Species Research 7 (4), pp. 251-290 : 261-262

Hypselistes australis Saito and Ono, 2001

ậoiƞḍljHḑ (ṉÿ) ( Figs. 5G , 8 G-I)

Hypselistes australis Saito and Ono, 2001: 3 ; Ono, Matsuda and Saito, 2009: 263.

Material examined. 1$, grassland (36°48 ʹ 30 ʺ N, 129° 05 ʹ 19 ʺ E, alt. 1298 m), the summit of Mt. Ilweol, Jaesan-myeon, Bonghwa-gun , Gyeongsangbuk-do, 23 July 2010, J. C. Lim .

Diagnosis. This species is very similar to H. semiflavus (L. Koch, 1879) in the shape of dorsal plate of epigynum and internal genitalia, but can be distinguished from the latter by the shape of copulatory ducts ( Fig. 8 G-I).

Description. Female. Total length 2.18. Habitus as in Figure 5G . Carapace reddish brown, 0.93 long, 0.73 wide. Clypeus height 3.8 times of diameter of AME. AER 0.29, PER 0.33; AER recurved slightly and PER procurved in dorsal view. AME 0.05, ALE 0.07, PME 0.07, PLE 0.07, AME-AME 0.03, AME-ALE 0.03, PME-PME 0.04, PME-PLE 0.05, AME-PME 0.09, and ALE-PLE 0.01. Median ocular quadrangle, height> posterior side>anterior side (15:13:9). Both margins of chelicera armed with four marginal teeth. Sternum 0.52 long, 0.52 wide. Labium 0.17 wide. Leg measurements: I 2.87 (0.85, 0.26, 0.69, 0.68, 0.39), II 2.71 (0.79, 0.23, 0.68, 0.65, 0.36), III 2.36 (0.68, 0.22, 0.53, 0.59, 0.34), IV 2.91 (0.86, 0.22, 0.73, 0.74, 0.36). Leg I/c 3.09. Fem. I/c 0.91. Tib. I/c 0.74. Met. I/c 0.73. Pat. I + tib. I/c 1.02. Met. I/tar. I 1.74. Met. IV/tar. IV 2.06. Chaetotaxy 1-1- 1-1. Tm 1 0.94, Tm IV present. Abdomen oval and dark brown, and 1.50 long, 1.20 wide. Epigynum: dorsal plate reddish brown and convex, with a broad rounded indentation at posterior margin; internal genitalia with a pair of copulatory opening at posterior margin, a pair of broad and tortuous copulatory ducts, and a pair of spermathecae ( Fig. 8 G-I).

Habitat. Grassland

World Distribution. Japan, Korea (Gyeongsangbuk-do), Russia.

Deposition. NIBR.

Identifier. Bo Keun Seo.

Figures

Fig. 5. Habitus of linyphiid species (I): A -Cnephalocotes ferrugineus n. sp., male; B - idem, female; C - Diplocephaloides falcatus n. sp., male; D - idem, female; E - Hylyphantes nigritus (Simon, 1881), male; F - idem, female; G - Hypselistes australis Saito and Ono, 2001, female; H - Metopobactrus cornis n. sp., male; I - Pelecopsis bigibba n. sp., male; J - idem, female; K - Pelecopsis brunea n. sp., male; L - idem, female; M - Pelecopsis montana n. sp., male; N - Tapinocyba parva n. sp., male; O - idem, female; P - Tapinocyba subula n. sp., male; Q - idem, female; R - Walckenaeria supercilia n. sp., male; S - Diplostyla concolor(Wider, 1834), male; T - idem, female. Scale bars: 0.5 mm.

Fig. 8. Hylyphantes nigritus (Simon, 1881) A-F), Hypselistes australis Saito and Ono, 2001 (G-I), and Metopobactrus cornis n. sp.(J-M): A, L - male left palp, retrolateral view; B, M - idem, prolateral view; C - idem, tibial apophysis, dorsal view; D-E, G-H - epigynum; F, I - internal genitalia; J - male head, lateral view; K - idem, frontal view. Scale bars: 0.5 mm (J), 0.1 mm (rest).