Oedothorax cunur, TANASEVITCH, 2015 INCERTAE

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 : 544

‘ OEDOTHORAX’ CUNUR TANASEVITCH, 2015 INCERTAE SEDIS

( FIGS 7E , 67F , 68F , 75 )

Oedothorax cunur Tanasevitch, 2015: 383 , figs 26–34 (Dmf).

Type material: Holotype: India: Madras , Nilgiri, Coonoor, 1600 m, sifting in forest below town, ♂ 22.xi.1972, leg. C. Besuchet & I. Löbl ( MHNG, examined) . Paratype: 1♀, collected together with the holotype ( MHNG, examined) .

Diagnosis:

Males: This species can be identified by the lack of prosomal modification and the distinct shapes of palpal tibia prolateral apophysis and embolic division.

Females: Epigyne simple as in Oedothorax s.s., Callitrichia and Mitrager .

Description:

Male (holotype): Total length: 2.10. Prosoma: 1.02 long, 0.87 wide, unmodified ( Fig. 7E ). Eyes: AME- AME: 0.03, AME width: 0.04, AME-ALE: 0.04, ALE width: 0.09, ALE-PLE: 0, PLE width: 0.09, PLE-PME: 0.06, PME width: 0.08, PME-PME: 0.06. Clypeus: not hirsute, one sub-AME seta. Sternum: 0.62 long, 0.59 wide. Chelicerae: stridulatory striae rows compressed proximally ( Fig. 67F ). Legs: tibia chaetotaxy 2-2-1- 1, dorsal proximal macroseta on tibia I 1.69 times diameter of tibia; Tm I: 0.55. All metatarsi with trichobothrium. Pedipalp: patella prolateral proximal vertical macrosetae abesent; tibia with one prolateral, two retrolateral trichobothria; TPS absent; TPA apical side scaly, with several setae with serrated tips on the upper margin; TRA absent ( Fig. 75A, D, E ); PC median-sized, base not visible from dorsal view, distal setae close to distal clasp, distal clasp with inconspicuous striae, directed retrolaterally ( Fig. 75A ); T without papillae; PT with long papillae; TS short, with few papillae; MSA present; DSA short, irregular ar distal margin ( Fig. 75F ); EM flat, anterior margin without papillae, length equals ARP; ARP flat, slightly sclerotized; LER small, without striae, not extended dorsal to E; VRP long, anteriorly directed; TP tip narrow; E retrolaterally spiral, anterior margin at base slightly wavy ( Fig. 75C ). Opisthosoma: dorsal pattern see Fig. 68F ; PMS with mAP, two AC; PLS with triad, 3+ AC ( Fig. 75I, J ).

Female (paratype): Total length: 2.22. Prosoma: 1.02 long, 0.87 wide. Eyes: AME-AME: 0.02, AME width: 0.05, AME-ALE: 0.03, ALE width: 0.09, ALE-PLE: 0.01, PLE width: 0.09, PLE-PME: 0.06, PME width: 0.08, PME- PME: 0.05. Clypeus: not hirsute, one sub-AME seta. Sternum: 0.62 long; 0.58 wide. Legs: tibia chaetotaxy 2-2-1-1, dorsal proximal macroseta on tibia II 2.09 times diameter of tibia; Tm I: 0.62. Epigyne: Clade 13 characteristic morphology, entrance of copulatory ducts into spermathecae ectal to exits of fertilization ducts ( Fig. 75G, H ). Opisthosoma: PMS with mAP, two AC, one CY; PLS with triad, two CY, 3+ AC ( Fig. 75K ).

Distribution: India, only known from the type locality.

Habitat: Lower layer of forests.

Remarks: According to the results of our phylogenetic analysis, and the lack of the distinctive characteristics of Oedothorax s.s., this species is more closely related to the generus Atypena , which is also distributed in the Oriental realm. We provisionally leave the taxonomic status of this species unchanged until further data become available.

Figures

Figure 7. Male prosomal morphology, lateral.A, Emertongone montifera (Emerton, 1882) (Paquin & Dupérré, 2003, fig. 1187). B, Shaanxinus mingchihensis Lin, 2019 (traced from photograph). C, ‘Oedothorax’ paracymbialis Tanasevitch, 2015 (traced from photograph). D, ‘Oe.’ kodaikanal Tanasevitch, 2015 (traced from photograph). E, ‘Oe.’ cunur Tanasevitch, 2015 (traced from photograph). F, ‘Oe.’ stylus Tanasevitch, 2015 (traced from photograph). G, Atypena cirrifrons (Heimer, 1984) (traced from photograph). H, A. formosana (Oi, 1977) (Oi, 1977, fig. 2). I, ‘Oe.’ nazareti Scharff, 1989 (Scharff, 1989: fig. 7). J, Gongylidium rufipes (Linnaeus, 1758) (traced from photograph). K, Ummeliata insecticeps (Bösenberg & Strand, 1906) (Tu & Li 2004: fig. 8A). L, U. esyunini (Zhang, Zhang & Yu, 2003) (Zhang et al., 2003, fig. 2A). M, Hylyphantes graminicola (Sundevall, 1830) (traced from photograph). N, Tmeticus tolli Kulczyński, 1908 (traced from photograph). O, Oedothorax gibbosus (Blackwall, 1841) [Roberts, 1987: fig. 21 (e)]. P, Oe. trilobatus (Banks, 1896) (Bishop & Crosby, 1935: fig. 79). Q, Oe. gibbifer (Kulczyński, 1882) (Heimer & Nentwig, 1991: fig.604.5).R, Oe.apicatus (Blackwall, 1850) [Roberts, 1987: fig.23 (d)].S, Oe. retusus (Westring, 1851) [Roberts, 1987: fig. 23 (c)]. T, Oe. paludigena Simon, 1926 [Millidge, 1975: fig. (5)]. U, Oe. meridionalis Tanasevitch, 1987 (Tanasevitch, 1987: fig. 107).V, Oe. agrestis (Blackwall, 1853) (Roberts, 1987: fig. 23B).W, Oe. fuscus (Blackwall, 1834) (Roberts, 1987: fig. 23A). X, Oe. tingitanus (Simon, 1884) (Denis, 1968: fig. 11).

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 75. ‘Oedothorax’ cunur Tanasevitch, 2015. A–D, male right palp, images flipped horizontally. A, retrolateral view. B, prolateral view. C, embolic division, prolateral view. D, dorsal view. E, F, left palp. E, dorsal view. F, retrolateral view. G, H, epigyne. G, ventral view. H, external morphology. I, male posterior lateral spinnerets. J, male posterior median spinnerets. K, female spinnerets. Scale bars 0.1 mm.