Jilinus hulongensis

Lin, Shou-Wang, Lopardo, Lara & Uhl, Gabriele, 2022, Evolution of nuptial-gift-related male prosomal structures: taxonomic revision and cladistic analysis of the genus Oedothorax (Araneae: Linyphiidae: Erigoninae), Zoological Journal of the Linnean Society 195, pp. 417-584 : 531-533

JILINUS HULONGENSIS ( ZHU & WEN, 1980) COMB. NOV.

( FIGS 67A , 68A , 70 ; SUPPORTING INFORMATION, FIG. S5C )

Oedothorax hulongensis Zhu & Wen, 1980: 21 , fig. 4A–E (Dmf).

Oedothorax hulongensis Hu, 1984: 197 , fig. 207.1–5 (mf).

Oedothorax hulongensis Zhu & Shi, 1985: 118 , fig. 103a–d (f).

Oedothorax hulongensis Song, 1987: 154 , fig. 115 (mf).

Oedothorax hulongensis Zhang, 1987: 131 , fig. 109.1–4 (mf).

Oedothorax hulongensis Chen & Zhang, 1991: 180 , fig. 177.1–4 (mf).

Oedothorax hulongensis Zhao, 1993: 192 , fig. 87a, b (f).

Oedothorax hulongensis Song et al., 1999: 199 , fig. 113I–K (mf).

Oedothorax hulongensis Song et al., 2001: 154 , fig. 88A–D (mf).

Oedothorax hulongensis Zhu & Zhang, 2011: 147 , fig. 97A–D (mf).

Oedothorax hulongensis Seo, 2011: 35 , fig. 1–10 (mf).

Type material: Holotype: China: Jilin Province, Hulong Xian, riverbank, under pebbles, 1♀ 13.v.1971 (71–226, not examined). Allotype: 1♂, same location and date as holotype, not examined. Paratypes: 52♀, same location and date as holotype, not examined; Jilin Province, Huaide County, 2♀ 27.v.1972 (72–393, not examined); Liaoning Province, Chaoyang County, at riverside, 4♂ 89♀ 26.iii.1979 (79-2, not examined). Deposited in the Department of Cellular Biology, Norman Bethune University of Medical Science, Changchun, China.

Examined material: China: Hunan, 2♂ 2♀ 1985, det. Li Shuqiang (IZCAS-Ar. 417); Liaoning, Shuoyang, 1♂ 1♀ 9.v.1983, det. Li Shuqiang (IZCAS-Ar. 389); Hunan, 1♀ v.1985, det. Gao Jiuchun & Li Shuqiang (IZCAS-Ar. 385) (Institute of Zoology, Chinese Academy of Sciences Collection).

Unexamined literature record s, South Korea: Jeollabuk-do, Mt. Naejang, 1♂ 1♀ 22.v.2004, leg. T. J. Kweon ( Seo, 2011).

Description:

Male (IZCAS-Ar. 389): Total length: 1.90. Prosoma: 0.88 long, 0.71 wide, unmodified. Eyes: AME- AME: 0.03, AME width: 0.05, AME-ALE: 0.02, ALE width: 0.08, ALE-PLE: 0, PLE width: 0.07, PLE-PME: 0.03, PME width: 0.07, PME-PME: 0.05. Clypeus: not hirsute, one sub-AME seta. Sternum: 0.51 long, 0.52 wide. Chelicerae: mastidia absent; stridulatory striae rows widely and evenly spaced ( Fig. 67A ). Legs: tibia chaetotaxy 2-2-1-1, dorsal proximal macroseta on tibia I and II 1.34 and 1.41 times diameter of tibia, respectively; Tm I: 0.50. All metatarsi with trichobothrium. Pedipalp: PC median-sized, distal setae close to distal clasp, distal clasp extended distally ( Fig. 70A ); T without papillae; PT with long papillae; TS absent ( Fig. 70D ); MSA absent; DSA present; EM absent; E arising from distal part of DSA; TP tip round; ARP retrolateral to DSA, broad, with small protuberances below tip ( Fig. 70B ). Opisthosoma: evenly coloured, grey ( Fig. 68A ). PMS with mAP, two AC; PLS with triad, 3+ AC ( Fig. 70H ).

Female (IZCAS-Ar. 389): Total length: 2.46. Prosoma: 0.98 long, 0.76 wide. Eyes: AME-AME: 0.03, AME width: 0.06,AME-ALE: 0.02, ALE width: 0.08,ALE-PLE:0, PLE width: 0.08, PLE-PME: 0.04, PME width: 0.08, PME- PME: 0.05. Clypeus: not hirsute, one sub-AME seta. Sternum: 0.57 long; 0.59 wide. Legs: tibia chaetotaxy 2-2-1-1, dorsal proximal macroseta on tibia I, II, III and IV 1.68, 1.69, 1.88 and 2.10 times diameter of tibia, respectively; Tm I: 0.55. Epigyne: similar to Oedothorax ; borders between dorsal and ventral plates parallel; CO with large chambers ( Fig. 70E–G ). Opisthosoma: evenly coloured, grey; PMS with mAP, two AC, one CY; PLS with triad, two CY, 3+ AC ( Fig. 70I ).

Variation: The measurements are based on examined material.

Males (N = 6, means in parentheses): Total length 1.66– 1.94 (1.79). Prosoma: 0.79–0.93 (0.85) long, 0.64–0.76 (0.69) wide. Legs: dorsal proximal macroseta on tibia I, II, III and IV 1.34–1.62 (1.46, N = 5), 1.36–1.53 (1.46, N = 5), 1.39–1.94 (1.60) and 1.52–1.75 (1.59, N = 4) times diameter of tibia, respectively; Tm I: 0.50–0.56 (0.54).

Females (N = 5, means in parentheses): Total length 2.17–1.70 (2.38). Prosoma: 0.91–1.07 (0.99) long, 0.72– 0.82 (0.77) wide. Legs: dorsal proximal macroseta on tibia I, II, III and IV 1.47–1.73 (1.60), 1.58–1.78 (1.68), 1.56–1.88 (1.68) and 1.46–2.10 (1.75) times diameter of tibia, respectively; Tm I: 0.51 –0.58 (0.54).

Distribution: Russia, China, Korea.

Habitat: Riversides.

Figures

Figure 5. Oedothorax agrestis (Blackwall, 1853). A–D, male left palp. A, retrolateral view. B, prolateral view. C, dorsal view. D, ventral view. E–H, epigyne. E, ventral view. F, dorsal view. G, anterior view. H, external morphology. Scale bar 0.1 mm.

Figure 67. Male chelicerae, stridulatory striae on lateral side. A, Jilinus hulongensis (Zhu & Wen, 1980). B, Cornitibia simplicithorax (Tanasevitch, 1998). C, Emertongone montifera (Emerton, 1882). D, ‘Oedothorax’ paracymbialis Tanasevitch, 2015. E, ‘Oe.’ kodaikanal Tanasevitch, 2015. F, ‘Oe.’ cunur Tanasevitch, 2015. G, ‘Oe.’ stylus Tanasevitch, 2015. H, Atypena cirrifrons (Heimer, 1984). I, A. formosana (Oi, 1977). J, ‘Oe.’ nazareti Scharff, 1989. K, Gongylidium rufipes (Linnaeus, 1758). L, Ummeliata insecticeps (Bösenberg & Strand, 1906). M, U. esyunini (Zhang, Zhang & Yu, 2003). N, Hylyphantes graminicola (Sundevall, 1830). O, Tmeticus tolli Kulczyński, 1908. Scale bars 0.05 mm.

Figure 68. Male opisthosoma, dorsal view. A, Jilinus hulongensis (Zhu & Wen, 1980). B, Cornitibia simplicithorax (Tanasevitch, 1998). C, Emertongone montifera (Emerton, 1882). D, ‘Oedothorax’ paracymbialis Tanasevitch, 2015. E, ‘Oe.’ kodaikanal Tanasevitch, 2015. F, ‘Oe.’ cunur Tanasevitch, 2015. G, ‘Oe.’ stylus Tanasevitch, 2015. H, Atypena cirrifrons (Heimer, 1984). I, A. formosana (Oi, 1977). J, ‘Oe.’ nazareti Scharff, 1989. K, Gongylidium rufipes (Linnaeus, 1758). L, Ummeliata insecticeps (Bösenberg & Strand, 1906). M, U. esyunini (Zhang, Zhang & Yu, 2003). N, Hylyphantes graminicola (Sundevall, 1830). O, Tmeticus tolli Kulczyński, 1908. Scale bars 0.1 mm.

Figure 70. Jilinus hulongensis (Zhu & Wen, 1980). A–D, male left palp. A, retrolateral view. B, prolateral view. C, dorsal view. D, ventral view. E–G, epigyne. E, ventral view. F, dorsal view. G, external morphology. H, male left spinnerets. I, female right spinnerets. Scale bar 0.1 mm.