Bowie vinhphuc S. Li & Yao, 2022

Chu, Chang, Lu, Ying, Li, Shuqiang & Yao, Zhiyuan, 2022, Taxonomic notes on eleven species of the subfamily Cteninae (Araneae, Ctenidae) from Asia, Biodiversity Data Journal 10, pp. 96003-96003 : 96003

Bowie vinhphuc S. Li & Yao sp. n.

Materials

Type status: Holotype. Occurrence: recordedBy: D. Pham; individualCount: 1; sex: male; lifeStage: adult; Taxon: order: Araneae; family: Ctenidae ; genus: Bowie ; Location : country: Vietnam; stateProvince: Vinh Phuc; verbatimLocality: Tam Dao National Park ; verbatimElevation: 172 m a.s.l.; verbatimLatitude: 21°22.733'N; verbatimLongitude: 105°32.817'E; Event: samplingProtocol: Collected by hand in leaf litter; year: 2003; month: 5; day: 6; Record Level: institutionCode: IZCAS-Ar 43544 Type status: Paratype. Occurrence: recordedBy: D. Pham; individualCount: 1; sex: male; lifeStage: adult; Taxon: order: Araneae; family: Ctenidae ; genus: Bowie ; Location : country: Vietnam; stateProvince: Vinh Phuc; verbatimLocality: Tam Dao National Park ; verbatimElevation: 172 m a.s.l.; verbatimLatitude: 21°22.733'N; verbatimLongitude: 105°32.817'E; Event: samplingProtocol: Collected by hand in leaf litter; year: 2003; month: 5; day: 6; Record Level: institutionCode: IZCAS-Ar 43545 Type status: Paratype. Occurrence: recordedBy: D. Pham; individualCount: 1; sex: female; lifeStage: adult; Taxon: order: Araneae; family: Ctenidae ; genus: Bowie ; Location : country: Vietnam; stateProvince: Vinh Phuc; verbatimLocality: Tam Dao National Park ; verbatimElevation: 172 m a.s.l.; verbatimLatitude: 21°22.733'N; verbatimLongitude: 105°32.817'E; Event: samplingProtocol: Collected by hand in leaf litter; year: 2003; month: 5; day: 6; Record Level: institutionCode: IZCAS-Ar 43728 Type status: Paratype. Occurrence: recordedBy: D. Pham; individualCount: 1; sex: female; lifeStage: adult; Taxon: order: Araneae; family: Ctenidae ; genus: Bowie ; Location : country: Vietnam; stateProvince: Vinh Phuc; verbatimLocality: Tam Dao National Park ; verbatimElevation: 172 m a.s.l.; verbatimLatitude: 21°22.733'N; verbatimLongitude: 105°32.817'E; Event: samplingProtocol: Collected by hand in leaf litter; year: 2003; month: 5; day: 6; Record Level: institutionCode: IZCAS-Ar 43729

Description

Male (IZCAS-Ar 43544): PL 6.4, PW 5.0, AW 2.4, OL 3.1, OW 3.5. Eye diameters and interdistances: AME 0.23, ALE 0.24, PME 0.28, PLE 0.26, AME-AME 0.22, AME-ALE 0.42, PME-PME 0.25, PME-PLE 0.41, AME-PME 0.20, ALE-PLE 0.21, clypeus AME 0.21, clypeus ALE 0.53. Palp and leg measurements: palp 7.4 (2.8, 0.9, 1.4, -, 2.3), I 17.7 (5.2, 2.5, 4.3, 4.3, 1.4), II 15.9 (4.7, 2.4, 3.7, 3.8, 1.3), III 13.4 (3.8, 1.9, 2.9, 3.6, 1.2), IV 19.5 (5.5, 2.3, 4.3, 5.8, 1.6). Leg formula 4123. Spination of palp and legs: palp 141, 100, 1010; femora I p021, d111, r112, II p112, d111, r1111, III p1111, d111, r1111, IV p002, d111, r111; patellae I-IV 101; tibiae I p110, d111, r21, v22222, II p20, d111, r110, v22222, III-IV p11, d111, r11, v222; metatarsi I p11, d002, r111, v222, II p111, r111, v222, III p111, d012, r211, v222, IV p122, d012, r111, v2122. Chelicerae with 3 promarginal, 4 retromarginal teeth and with elongated patch of 12 tiny denticles along entire cheliceral furrow. Retromargin of chelicerae close to fang base with 4 bristles. Sparse scopula restricted almost entirely to tarsi, only metatarsi I-II with sparse scopula hairs. Leg claws I-III with 3 and IV with 4 secondary teeth. Position of tarsal organ: I with 1.17, II 1.07, III 0.90, IV 1.09.

Palp (Fig. 19 a-c). RTA arising from tibia subdistally, with wide base and narrow tip. Cymbium tip slightly conical and with retrolatero-proximal outgrowth. Embolus (Fig. 28 c) arising at 7 o’clock position, with a large seam from the middle to the tip. Conductor arising at 12 o’clock position. Tegular apophysis arising at 6 o’clock position, covering partly membranous extension part of embolus.

Colour (Fig. 20 c and d). Deep reddish-brown with darker patterns. Dorsal prosoma with characteristic lighter median band, widened behind eyes, eye field and lateral field with white dense hairs, with distinctly marked fovea and radial markings. Sternum and ventral coxae yellowish-brown without patches, labium and gnathocoxae reddish-brown with lighter distal lips. Chelicerae deep reddish-brown without patterns. Palps and legs reddish-brown without patterns. Dorsal opisthosoma yellowish-brown with black patches and anterior margin with lighter area. Lateral opisthosoma without spots. Ventral opisthosoma dark brown with posteriorly converging lines of spots. Anterior lateral spinnerets laterally dark, posterior lateral and median spinnerets and anal tubercle light.

Female (IZCAS-Ar 43728): PL 6.7, PW 5.2, AW 3.1, OL 8.5, OW 7.0. Eye diameters and interdistances: AME 0.25, ALE 0.21, PME 0.28, PLE 0.26, AME-AME 0.22, AME-ALE 0.48, PME-PME 0.29, PME-PLE 0.57, AME-PME 0.23, ALE-PLE 0.23, clypeus AME 0.19, clypeus ALE 0.58. Palp and leg measurements: palp 6.9 (2.5, 1.3, 1.4, -, 1.7), I 16.3 (4.8, 2.6, 4.1, 3.5, 1.3), II 15.0 (4.5, 2.4, 3.5, 3.4, 1.2), III 13.1 (4.1, 2.0, 2.7, 3.1, 1.2), IV 18.8 (5.2, 2.2, 4.1, 5.6, 1.7). Leg formula 4123. Spination of palp and legs: palp 131, 000, 1111, 2101; femora I p021, d111, r021, II p112, d111, r021, III p112, d111, r112, IV p111, d111, r001; patellae I-II 000, III-IV 101, tibiae I-II v22222, III-IV p11, d111, r11, v222; metatarsi I-II v222, III p112, d010, r112, v222, IV p112, r112, v2222. Chelicerae with 3 promarginal, 4 retromarginal teeth and with elongated patch of 10 tiny denticles along entire cheliceral furrow. Retromargin of chelicerae close to fang base with 5 bristles. Sparse scopula restricted almost entirely to tarsi, only metatarsi I-II with sparse scopula hairs. Palpal claw with 6 secondary teeth, leg claws I with 1, II-III with 2 and IV with 3 secondary teeth. Position of tarsal organ: I 1.03, II 0.97, III 0.95, IV 1.42.

Copulatory organ (Fig. 20 a, b and Fig. 21 b). Epigynal field wider than long. Lateral teeth arising laterally from median plate, curved and with pointed tips. Median plate with constricted posterior part and distinct humped areas best seen in posterior view. Internal duct system with two large vulval folds. Spermathecae separated by less than their diameter, larger chamber round and apically swollen and smaller one spherical. Fertilisation ducts pointing medially.

Colour (Fig. 20 e and f). As in male, except for: dorsal prosoma with distinct light median band and without white dense hairs. Lateral opisthosoma spotted.

Variation: Paratype male (IZCAS-Ar 43545): PL 7.4, OL 6.5. Second paratype female (IZCAS-Ar 43729): PL 7.6, OL 7.8.

Diagnosis

Small to medium-sized Ctenidae (total length male 9.5-13.9, female 15.2-15.4). The new species is assigned to the robustus -species group with the characteristics of stout tegular apophysis, simple stout embolus with broad base and short apical part, presence of retro-proximal cymbial outgrowth, RTA arising subdistally from palpal tibia, female possesses a transversally oval median plate with lateral teeth situated laterally and not reaching the epigastric furrow. It resembles B. yassassin Jäger, 2022 (see Jäger 2022: figs 287-290 and 307-313) by having similar retro-proximal cymbial outgrowth, conductor, tegular apophysis, RTA (Fig. 19 a-c) and lateral teeth (Fig. 20 a and Fig. 21 b), but can be distinguished by the embolus with a large seam from the middle to the tip (Fig. 19 b, arrowed in Fig. 28 c; absent in B. yassassin ), by the median plate with distinct humped areas best seen in posterior view (Fig. 21 b; absent in B. yassassin ), by the spermathecae separated by less than their diameter, larger chamber round and apically swollen (Fig. 20 b; spermathecae separated by about their diameter, larger chamber oval in B. yassassin ) and by the fertilisation ducts pointing medially (Fig. 20 b; fertilisation ducts pointing postero-medially in B. yassassin ).

Etymology

The specific name refers to the type locality and is a noun in apposition.

Distribution

Vietnam (Vinh Phuc, type locality; Fig. 1 ).

Figures

Figure 1. Distribution records of ctenid spiders from Asia in this study. 1. Amauropelma krabi sp. n.; 2. Am. phangnga sp. n.; 3. Am. saraburi sp. n.; 4. Anahita medog sp. n.; 5. An. popa; 6. Bowie fascination; 7. B. ninhbinh sp. n.; 8. B. vinhphuc sp. n.; 9. B. borneo sp. n.; 10. B. engkilili sp. n.; 11. B. sabah sp. n.

Figure 19. Bowie vinhphuc sp. n., palp, holotype. a: Prolateral view; b: Ventral view; c: Retrolateral view. C = conductor, E = embolus, RPO = retro-proximal cymbial outgrowth, RTA = retrolateral tibial apophysis, TA = tegular apophysis. Scale bar: 0.5 mm (a-c).

Figure 20. Bowie vinhphuc sp. n. a: Paratype female, epigyne, ventral view; b: Same, vulva, dorsal view; c: Holotype male, habitus, dorsal view; d: Same, habitus, ventral view; e: Paratype female, habitus, dorsal view; f: Same, habitus, ventral view. FD = fertilisation duct, HA = humped areas of median plate, LT = lateral teeth, SP = spermathecae. Scale bars: 0.2 mm (a, b), 2.0 mm (c-f).

Figure 21. Epigyne, posterior view. a: Bowie fascination Jaeger, 2022; b: B. vinhphuc sp. n. HA = humped areas of median plate, LT = lateral teeth. Scale bars: 0.2 mm (a), 0.1 mm (b).