Serendib hispida Zhang & Zhang, 2023

Zhang, Lu & Zhang, Feng, 2023, Note on the genus Serendib Deeleman-Reinhold, 2001, with the description of a new species (Araneae, Corinnidae, Castianeirinae), Biodiversity Data Journal 11, pp. 99980-99980 : 99980

Serendib hispida Zhang & Zhang sp. n.

Materials

Type status: Holotype. Occurrence: recordedBy: Zhizhong Gao; individualCount: 1; sex: male; lifeStage: adult; occurrenceID: D008FE69-6F16-505D-B06B-614E3D6B23E8; Taxon : scientificName: Serendib hispida; Location : country: Malaysia; county: Negeri Pahang; locality: Karak ; verbatimElevation: 68m; verbatimLatitude: 3°25′53.88″N; verbatimLongitude: 102°3′40.74″E; Event : year: 2015; month: 10; day: 27; Record Level : institutionID: the Museum of Hebei University ; institutionCode: MHBU Type status: Paratype. Occurrence: recordedBy: Zhizhong Gao; individualCount: 1; sex: female; lifeStage: adult; occurrenceID: FAB32914-FE13-5027-8608-2F3886291DD7; Taxon : scientificName: Serendib hispida; Location : country: Malaysia; county: Negeri Pahang; locality: Pahang ; verbatimElevation: 68m; verbatimLatitude: 3°25′53.88″N; verbatimLongitude: 102°3′40.74″E; Event : year: 2015; month: 10; day: 27; Record Level : institutionID: the Museum of Hebei University ; institutionCode: NHBU

Description

Male (Holotype) (Fig. 7 a-b). Total length 4.02; carapace 1.87 long, 1.29 wide; abdomen 2.15 long, 1.23 wide. Eye sizes and interdistances: AME 0.11, ALE 0.09, PME 0.10, PLE 0.08; AME-AME 0.19, AME-ALE 0.13, ALE-ALE 0.42, PME-PME 0.25, PME-PLE 0.17, PLE-PLE 0.56, ALE-PLE 0.20. MOA 0.18 long, anterior width 0.28, posterior width 0.35. Clypeal height 0.12. Labium 0.10 long, 0.27 wide. Sternum 0.86 long, 0.77 wide. Measurements of legs: I 4.68 (1.34, 0.47, 1.08, 0.96, 0.83), II 4.61 (1.35, 0.34, 1.12, 0.99, 0.81), III 4.43 (1.29, 0.42, 1.03, 1.04, 0.65), IV 5.87 (1.65, 0.47, 1.36, 1.45, 0.94).

Carapace brown, wedge-shaped, with smooth surface. Legs slender, orange (Fig. 7 a-b); femur I with six bristles ventrally, femur II with five, femur III with two, femur IV with one (Fig. 3 a). Abdomen dark brown, oval, with dorsal scutum; with short, V-shaped and grooved collar. Dorsal scutum large, oval; anterior with two pairs of strong spines and posterior with two rows of white, erected setae (Fig. 7 a, c; Fig. 2 a, c). Epigastric sclerite extending anteriorly and sclerotized. Ventral scutum rectangular and heavily sclerotized (Fig. 7 b).

Palp as in Fig. 8 a-d. RTA subuliform, small. Sperm duct coiled and formed several loops; anterior with transverse U-shaped loop, middle double S-shaped, posterior with extra loop. Embolus straight spine-like process, with cataphracted stripes on surface.

Female (Fig. 7 c-d). Total length 5.32; carapace 2.07 long, 1.44 wide; abdomen 3.25 long, 1.76 wide. Eye sizes and interdistances: AME 0.13, ALE 0.10, PME 0.11, PLE 0.09; AME-AME 0.22, AME-ALE 0.14, ALE-ALE 0.47, PME-PME 0.29, PME-PLE 0.21, PLE-PLE 0.65, ALE-PLE 0.18. MOA 0.22 long, anterior width 0.31, posterior width 0.37. Clypeal height 0.13. Labium 0.12 long, 0.31 wide. Sternum 0.93 long, 0.81 wide. Measurements of legs: I 5.18 (1.46, 0.46, 1.22, 1.11, 0.93), II 5.01 (1.44, 0.47, 1.17, 1.05, 0.88), III 4.84 (1.43, 0.45, 1.12, 1.11, 0.73), IV 6.32 (1.83, 0.49, 1.53, 1.55, 0.92). Other characteristics as in the holotype, except dorsal scutum extending about half the length of abdomen.

Epigyne as in Fig. 8 e-f. Copulatory openings posteriorly situated and separated. Copulatory ducts long, stair-stepping and extended into black anterior spermathecae. Posterior spermathecae slender, subcylindrical, separated. Fertilization ducts short, semi-circular, lying the posterior spermathecae.

Diagnosis

The new species resembles that of S. suthepica in anterior abdomen with two pairs of strong spines, but can be distinguished by the following characteristics: 1) the longer embolus (vs. short in S. suthepica ) (cf. Fig. 8 a-d with figs 517-519 in Deeleman-Reinhold (2001)); 2) carapace brown and smooth (vs. black, elongated, covered yellowish plumose in S. suthepica ) (cf. Fig. 7 a, c with Fig. 6 a); 3) legs orange (vs. brown or black with white stripes distally in S. suthepica ) (cf. Fig. 7 with Fig. 6 a-b); 4) copulatory ducts long, transverse and stair-stepping (vs. transverse, coiled in S. suthepica ) (cf. Fig. 8 e-f with Fig. 6 c-d).

Etymology

The specific name is an adjective and refers to the characters of the dorsal scutum with two rows of setae. Latin Serendib hispida = hispid.

Distribution

Malaysia (Pahang) (Fig. 9 ).

Figures

Figure 6. Serendib suthepica Deeleman-Reinhold, 2001: a female habitus, dorsal view; b same, ventral view; c epigyne, ventral view; d vulva, dorsal view. Abbreviations: CO-copulatory opening; CD-copulatory duct; FD-fertilization duct; S-spermatheca. Scale bars: 1 mm (a-b); 0.2 mm (c-d).

Figure 7. Serendib hispida sp. n.: a male habitus, dorsal view; b same, ventral view; c female habitus, dorsal view; d same, ventral view. Scale bars: 1 mm (a-d).

Figure 8. Serendib hispida sp. n.: a male left palp, prolateral view; b same, ventral view; c same, retrolateral view; d enlarged emblous, ventro-retrolateral view; e epigyne, ventral view; f vulva, dorsal view. Abbreviations: E-embolus; T-tegulum; ST-subtegulum; SD-sperm duct; RTA-retrolateral tibial apophysis; CO-copulatory opening; CD-copulatory duct; FD-fertilization duct; S-spermatheca. Scale bars: 0.1 mm (a-f).

Figure 9. Distribution map of the genus Serendib.