Serendib volans Deeleman-Reinhold, 2001

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 volans Deeleman-Reinhold, 2001

Materials

Type status: Other material. Occurrence: recordedBy: Chi Ji; individualCount: 1; sex: female; lifeStage: adult; occurrenceID: 97B26255-0FE4-505D-8BE4-85D25C017548; Taxon: scientificName: Serendib volans Deeleman-Reinhold, 2001; Location : country: Malaysia; stateProvince: Negeri Sabah; locality: Forest Girl Camp ; Event : year: 2017; month: 5; day: 2; Record Level : institutionID: the Museum of Hebei University ; institutionCode: MBHU

Description

Female (Fig. 4 a-b). 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).

Carapace brown, with smooth surface (Fig. 4 a). Legs slender, brown; femora I-II black, with two white and longitudinal stripes (Fig. 4 a-b); femora I-II with long bristles ventrally (Fig. 3 c). Abdomen dark brown and round, with a pair of sigilla; with long and transverse groove collar (Fig. 4 a; Fig. 1 d); anteriorly with one pair of strongly erected spines (Fig. 2 b, d). Dorsal scutum large, round, nearly covered abdomen, with a pair of white stripes (Fig. 4 a).

Epigyne as in Fig. 4 c-d. Copulatory openings distinct, with arc-shaped sclerotized margins. Copulatory ducts basal wide, gradually narrowed and extended into anterior spermathecae.

Diagnosis

The female of S. volans resembles that of S. muadai in having similar colouration and habitus, but can be distinguished by the following characteristics: 1) abdomen with a pair of sigilla (vs. absent in S. muadai ) (cf. Fig. 4 a with fig. 55 in Jäger et al. (2012)); 2) posterior spermathecae oval, distinctly separated (vs. posterior spermathecae round, closed to each other in S. muadai ) (cf. Fig. 4 d with fig. 45 in Jäger et al. (2012)).

Distribution

Thailand, Malaysia (Borneo) (Fig. 9 ).

Figures

Figure 4. Serendib volans 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); 0.1 mm (c-d).

Figure 9. Distribution map of the genus Serendib.