Microdipoena jobi (Kraus, 1967)

Zhang, Qiuqiu & Lin, Yucheng, 2023, Phylogenetic placement of eight poorly known spiders of Microdipoena (Araneae, Mysmenidae), with descriptions of five new species, ZooKeys 1175, pp. 333-373 : 333

Microdipoena jobi (Kraus, 1967)

Figs 11 , 12 , 13

Mysmena jobi Kraus, 1967: 392, figs 12-18 (♂♀).

Mysmenella jobi : Brignoli 1980: 731; Namkung 2002: 146, fig. 16a, b (♂♀).

Microdipoena jobi : Lopardo and Hormiga 2015: 783 (♂♀); Naumova et al. 2017: 478, figs 12-14 (♂).

Type material.

Holotype ♂ (SMF 12958) and paratype 1♂ 2♀ (SMF 12959); 1♂ (Mus. Paris) France: Paris, Mainz-Gonsenheim, Gonsenheimer forest, forests trap, 20.IV.1967, W. Job leg. Examined in 2008.

Other material examined.

1♂ 1♀ (NHMSU-No.57), Georgia: Adjara, road along Acharistsqali River , dry stone debris near bridge (41°34.720'N, 41°51.760'E; 113 m elev.), 21.VII.2012, S. Li leg.

Diagnosis.

This species is similar to M. gongi , M. illectrix , M. menglunensis , M. mihindi , M. ogatai , M. papuana , M. pseudojobi , M. samoensis , M. shenyang sp. nov., M. yinae , and M. zhulin sp. nov. in having a twisted complex structure at the embolus end, but can be distinguished by the peculiar shape of conductor with a huge lower lateral process, the cymbial tooth near the ventral center of cymbium, the spherical spermathecae spaced by ca 2.3 × their diameter, and the long, soft scape (cf. Figs 12B, C, F, G , 13B, C , 14F , 16A, B , 17C , 20C , 22A, B, D , 23D , and Lin and Li 2013: fig. 21F; Lin and Li 2008: figs 11F, G, 12F; Lopardo and Hormiga 2015: figs 129E, F, 132C-E).

Description.

Male (holotype): Total length 0.96. Carapace 0.46 long, 0.50 wide, 0.50 high. Clypeus 0.06 high. Sternum 0.32 long, 0.26 wide. Abdomen 0.5 long, 0.46 wide, 0.50 high. Length of legs: I 1.42 (0.52, 0.08, 0.40, 0.20, 0.22); II 1.22 (0.40, 0.08, 0.32, 0.20, 0.22); III 0.72 (0.20, 0.08, 0.18, 0.12, 0.14); IV 1.98 (0.20, 0.08, 0.26, 0.20, 0.24).

Somatic characters

(Fig. 11A-C ). Coloration: carapace silver-brown. Ocular base black. Chelicera, endites, labium yellow; sternum yellow with two longitudinal brown stripes. Legs yellow-brown. Abdomen black with symmetrical white spots dorsally, yellow with two symmetrical white stripes ventrally. Prosoma: carapace nearly oval in dorsal view and peak-shaped in lateral view. Cephalic part elevated. Sternum scutiform, plump, covered with sparse setae. Legs: covered with setae. Mating clasper on metatarsus I, two strong spines on tibia I, femur I with sclerotized femoral spot. Abdomen: nearly oval in dorsal view.

Palp (Fig. 12A-G ): The palp 45° inclined to the surface of the tibia. Cymbium translucent, cymbial tooth on the prolateral, sclerotized; the tip specialized as cymbial conductor; a large cymbial process at the contralateral of the cymbial conductor. Paracymbium small, with long setae. Conductor 7-shaped, sclerotized, with two large apophyses apically and two pointed apophyses basally. Tegulum translucent, swollen surface. Embolus wide and long, the tip with complex structure, most structure coiled into two loops. Spermatic ducts can be seen through translucent tegulum.

Female. Total length 1.38. Carapace 0.40 long, 0.40 wide, 0.33 high. Clypeus 0.06 high. Sternum 0.32 long, 0.30 wide. Abdomen 0.98 long, 0.92 wide, 0.66 high. Length of legs: I 1.32 (0.36, 0.16, 0.30, 0.24, 0.26); II 1.12 (0.32, 0.16, 0.26, 0.18, 0.20); III 0.70 (0.16, 0.12, 0.14, 0.12, 0.16); IV 0.84 (0.32, 0.12, 0.16, 0.12, 0.12).

Somatic characters

(Fig. 11D-F ). Coloration: carapace dark brown. Ocular base black. Chelicera, endites, labium yellow; sternum yellow with two longitudinal brown stripes. Legs brown-black. Abdomen silvery brown with multiple white spots dorsally, brown with two symmetrical white stripes and multiple little white spots ventrally. Prosoma: carapace nearly pear-shaped in dorsal view. Cephalic part unelevated. Sternum scutiform, slightly plump, covered with sparse setae. Legs: covered with setae and bristles. Femurs I and II with sclerotized femoral spot. Abdomen: nearly spherical in dorsal view, covered with sparse setae.

Epigyne (Fig. 13A-C ): slightly sclerotized. Scape long, base wide, with thin folds. Copulatory duct long, membranous, with sclerotized S-shaped, coiled under the spermathecae. Paired spermathecae transverse ovoid, separated by more than 3 × diameter. Fertilization ducts membranous, inconspicuous.

Distribution.

France, Georgia (Adjara), Caucasus, Iran, China, Korea, and Japan.

Figures

Figure 11. Microdipoena jobi Kraus, 1967, male (A-C) and female (D-F) from Georgia A habitus, dorsal B habitus, ventral C habitus, lateral D habitus, lateral E habitus, dorsal F habitus, ventral. Abbreviations: FS = femoral spot, MC = Metatarsal clasping spine, TS = tibial spine on male leg I. Scale bars: 0.50 mm.

Figure 12. Microdipoena jobi Kraus, 1967 from Georgia A bulbus with conductor removed, from behind B cymbium, prolateral C conductor, dorsal D embolic end, retrolateral E male palp, apical F male palp, prolateral G male palp, retrolateral. Abbreviations: CT = cymbial tooth, Cy = cymbium, CyC = cymbial conductor, CyP = cymbial process, E = embolus, Pa = patella, PC = paracymbium, T = tegulum, Ti = tibia. Scale bars: 0.10 mm.

Figure 13. Microdipoena jobi Kraus, 1967 from Georgia A epigyne, ventral B vulva, ventral C vulva, dorsal. Abbreviations: CD = copulatory duct, FD = fertilization duct, S = spermathecal, Sp = Scape. Scale bars: 0.10 mm.

Figure 14. Microdipoena lisu sp. nov., female from Yunnan of China A habitus, dorsal B habitus, ventral C habitus, lateral D epigyne, ventral E vulva, ventral F vulva, dorsal. Abbreviations: CD = copulatory duct, FD = fertilization duct, S = spermathecal, Sp = Scape. Scale bars: 0.50 mm (A-C); 0.10 mm (D-F).

Figure 16. Microdipoena shenyang sp. nov. from Liaoning of China A conductor, dorsal B cymbium, ventral C bulbus with conductor removed, prolateral D bulbus with conductor removed, retrolateral E embolic end, apical-lateral F male palp, prolateral G male palp retrolateral. Abbreviations: CT = cymbial tooth, Cy = cymbium, CyC = cymbial conductor, CyP = cymbial process, E = embolus, Pa = patella, PC = paracymbium, SD = spermatic duct, T = tegulum, Ti = tibia. Scale bars: 0.10 mm (A, B, E-G); 0.20 mm (C, D).

Figure 17. Microdipoena shenyang sp. nov. from Liaoning of China A epigyne, ventral B vulva, ventral C vulva, dorsal. Abbreviations: CD = copulatory duct, FD = fertilization duct, S = spermathecal, Sp = scape. Scale bars: 0.10 mm.

Figure 20. Microdipoena yinae Lin & Li, 2013, from Sichuan of China A male palp, apical B bulbus with conductor removed, dorsolateral C conductor, dorsal D male palp, prolateral E male palp, retrolateral. Abbreviations: Cy = cymbium, CyC = cymbial conductor, CyP = cymbial process, E = embolus, Pa = patella, PC = paracymbium, SD = spermatic duct, T = tegulum, Ti = tibia. Scale bars: 0.10 mm.

Figure 22. Microdipoena zhulin sp. nov. from Guangxi of China A palp, apical B conductor, dorsal C cymbium, apical D cymbium, prolateral E left tibia I and metatarsus I, prolateral F palp, prolateral G palp, ventral H palp, retrolateral. Abbreviations: CT = cymbial tooth, Cy = cymbium, CyC = cymbial conductor, CyP = cymbial process, E = embolus, MC = mating clasper, Pa = patella, PC = paracymbium, T = tegulum, Ti = tibia, TS = tibial spine. Scale bars: 0.10 mm.

Figure 23. Microdipoena zhulin sp. nov. from Guangxi of China A epigyne, ventral B epigyne, lateral C vulva, ventral D vulva, dorsal. Abbreviations: CD = copulatory duct, FD = fertilization duct, S = spermathecal, Sp = scape. Scale bars: 0.10 mm.