Bowie zhengi Yao & Li, 2022

Lu, Ying, Chu, Chang, Yao, Zhiyuan & Li, Shuqiang, 2022, Four new species of ctenid spiders (Araneae, Ctenidae) from Southeast Asia, with the first description of the female of Sinoctenus zhui Marusik, Zhang & Omelko, 2012, Biodiversity Data Journal 10, pp. 91350-91350 : 91350

Bowie zhengi Yao & Li sp. n.

Materials

Type status: Holotype. Occurrence: recordedBy: Guo Zheng ; individualCount: 1; sex: male; lifeStage: adult; Taxon : order: Araneae ; family: Ctenidae ; genus: Bowie ; Location : country: China; stateProvince: Yunnan; municipality: Xishuangbanna ; locality: Mengla County ; verbatimLocality: Menglun Town , Menglun Nature Reserve , Xishuangbanna Tropical Botanical Garden , Secondary tropical seasonal moist forest; verbatimElevation: 645 ± 17 m a.s.l.; verbatimLatitude: 21°54.718'N; verbatimLongitude: 101°16.940'E; Event: samplingProtocol: Pitfall traps; year: 2007; month: 3; day: 1-15; Record Level: institutionCode: IZCAS-Ar 43480 Type status: Paratype. Occurrence: recordedBy: Guo Zheng ; individualCount: 1; sex: male; lifeStage: adult; Taxon : order: Araneae ; family: Ctenidae ; genus: Bowie ; Location : country: China; stateProvince: Yunnan; municipality: Xishuangbanna ; locality: Mengla County ; verbatimLocality: Menglun Town , Menglun Nature Reserve , Xishuangbanna Tropical Botanical Garden , Secondary tropical seasonal moist forest; verbatimElevation: 656 ± 15 m a.s.l.; verbatimLatitude: 21°54.984'N; verbatimLongitude: 101°16.982'E; Event: samplingProtocol: Pitfall traps; year: 2007; month: 3; day: 16-31; Record Level: institutionCode: IZCAS-Ar 43481 Type status: Paratype. Occurrence: recordedBy: Guo Zheng ; individualCount: 1; sex: female; lifeStage: adult; Taxon : order: Araneae ; family: Ctenidae ; genus: Bowie ; Location : country: China; stateProvince: Yunnan; municipality: Xishuangbanna ; locality: Mengla County ; verbatimLocality: Menglun Town , Menglun Nature Reserve , Xishuangbanna Tropical Botanical Garden , Secondary tropical seasonal moist forest; verbatimElevation: 645 ± 17 m a.s.l.; verbatimLatitude: 21°54.718'N; verbatimLongitude: 101°16.940'E; Event: samplingProtocol: Pitfall traps; year: 2007; month: 6; day: 19-26; Record Level: institutionCode: IZCAS-Ar 43482 Type status: Paratype. Occurrence: recordedBy: Guo Zheng ; individualCount: 1; sex: female; lifeStage: adult; Taxon : order: Araneae ; family: Ctenidae ; genus: Bowie ; Location : country: China; stateProvince: Yunnan; municipality: Xishuangbanna ; locality: Mengla County ; verbatimLocality: Menglun Town , Menglun Nature Reserve , Xishuangbanna Tropical Botanical Garden , Secondary tropical seasonal moist forest; verbatimElevation: 656 ± 15 m a.s.l.; verbatimLatitude: 21°54.984'N; verbatimLongitude: 101°16.982'E; Event: samplingProtocol: Pitfall traps; year: 2007; month: 6; day: 1-15; Record Level: institutionCode: IZCAS-Ar 43483

Description

Male (IZCAS-Ar 43480): PL 6.5, PW 5.0, AW 2.3, OL 6.1, OW 4.4. Eye diameters and interdistances: AME 0.23, ALE 0.23, PME 0.31, PLE 0.25, AME-AME 0.19, AME-ALE 0.38, PME-PME 0.21, PME-PLE 0.39, AME-PME 0.19, ALE-PLE 0.20, clypeus AME 0.21, clypeus ALE 0.51. Palp and leg measurements: palp 7.0 (2.5, 1.0, 1.2, -, 2.3), I 17.7 (4.7, 2.3, 4.5, 4.6, 1.6), II 15.8 (4.5, 2.2, 3.7, 3.9, 1.5), III 13.6 (4.2, 2.0, 3.1, 3.1, 1.2), IV 19.6 (5.3, 2.1, 4.6, 5.9, 1.7). Leg formula 4123. Spination of palp and legs: palp 001, 112, 001; femora I p002, d113, r011, II-III p112, d111, r112, IV p112, d111, r002; patellae 101; tibiae I p010, d111, r110, v22222, II p110, d111, r010, v22222, III-IV p11, d111, r11, v222; metatarsi I p111, d001, r111, v222, II p111, d012, r111, v222, III p111, d002, r111, v222, IV p112, d010, r112, v222. 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 5 bristles. Sparse scopula on all tarsi and metatarsi I-III. Leg claws I, III, IV with 4 and II with 3 secondary teeth. Position of tarsal organ: II 1.32, III 1.02, IV 1.33.

Palp (Fig. 5 a-c). RTA with sclerotised, triangular subdistal apophysis, distally without distinct teeth and strongly swollen on proximal part. Cymbium tip slightly conical, with retro-proximal outgrowth and retro-proximal protuberance (arrowed 2 in Fig. 5 b, arrowed in Fig. 5 c). Embolus arising in an 8- o’clock-position from tegulum, short, its tip situated in distal half of tegulum. Conductor arising in a 12- o’clock-position from tegulum. Tegular apophysis arising at 6- o’clock-position from tegulum, distinctly excavated on dorsal side and strongly concave on ventral side (arrowed 1 in Fig. 5 b).

Colour (Fig. 6 c and d). Reddish-brown with darker patterns. Dorsal prosoma with characteristic slightly lighter median band, widened behind eyes, anterior and lateral field with white hairs and with distinctly marked fovea and distinct radial markings. Sternum brown with patterns, ventral coxae yellowish-brown without patterns, labium and gnathocoxae reddish-brown with distal darker spots. Chelicerae reddish-brown. Palps and legs yellowish-brown, without distinct patterns. Dorsal opisthosoma yellowish-brown with black patches, anterior margin and cardiac region with lighter area. Lateral opisthosoma spotted. Ventral opisthosoma dark brown with two posteriorly converging lines of spots and two pairs of distinct spots in the median field close to epigastric furrow. Spinnerets light with anterior lateral spinnerets laterally dark.

Female (IZCAS-Ar 43482): PL 6.0, PW 4.6, AW 3.0, OL 6.9, OW 4.7. Eye diameters and interdistances: AME 0.21, ALE 0.22, PME 0.28, PLE 0.27, AME-AME 0.24, AME-ALE 0.41, PME-PME 0.31, PME-PLE 0.49, AME-PME 0.19, ALE-PLE 0.26, clypeus AME 0.16, clypeus ALE 0.50. Palp and leg measurements: palp 5.1 (1.7, 0.9, 1.1, -, 1.4), I 13.2 (3.6, 2.1, 3.4, 2.9, 1.2), II 12.0 (3.5, 1.8, 2.9, 2.8, 1.0), III 11.7 (3.6, 1.9, 2.4, 2.8, 1.0), IV 16.7 (4.4, 2.0, 3.9, 4.9, 1.5). Leg formula 4123. Spination of palp and legs: palp 001, 012, 001; femora I p002, d111, r010, II p112, d111, r111, III p111, d111, r112, IV p001, d111, r102; patellae I-II 000, III-IV 101; tibiae I-II v22222, III-IV p11, d111, r11, v222; metatarsi I-II v222, III p111, d012, r111, v222, IV p112, d010, r112, v222. 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 6 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-III with 3 and IV with 4 secondary teeth. Position of tarsal organ: I 0.84, II 0.89, III 0.69, IV 0.92.

Copulatory organ (Fig. 6 a and b). Epigynal field laterally with two separate long nearly elliptic patches. The anterior part of the median plate is shorter than its posterior part, epigynal teeth nearly triangular, situated submedially at widest part. Internal duct system with two large vulval folds. Spermathecae with two distinctly separated chambers, fertilisation ducts small.

Colour (Fig. 6 e and f). As in male, except for: dorsal prosoma with characteristic distinct lighter median band, anterior and lateral field without distinct hairs.

Variation: Paratype male (IZCAS-Ar 43481): PL 5.8, OL 5.5. Second paratype female (IZCAS-Ar 43483): PL 6.3, OL 6.9.

Diagnosis

Medium Ctenidae (total length male 11.3-12.6, female 12.9-13.2). The new species was assigned to the bemywife species-group with the characteristics of retro-proximal protuberance of the cymbium and the transversally orientated TA. Additionally, it resembles B. yulin (Yao and Li, 2022) (see Chu et al. 2022: figs. 6-7) by having similar male retro-proximal protuberance of the cymbium, tegular apophysis (Fig. 5 a-c) and female epigynal teeth (Fig. 6 a), but can be distinguished by the embolus without small membranous process distally (Fig. 5 b and Fig. 8 c; present in B. yulin ), by the RTA with sclerotised, triangular subdistal apophysis (Fig. 5 b; distally with teeth and strongly swollen on proximal part in B. yulin ), by the female epigynal median plate narrowed anteriorly (Fig. 6 a; the anterior part of median plate is as wide as the posterior part in B. yulin ) and by the spermathecae not spherical and chamber II small (Fig. 6 b; spermathecae both spherical and chamber II large in B. yulin ).

Etymology

The specific name is a patronym in honour of the collector Guo Zheng (Shenyang Normal University, Shenyang, China); noun in genitive case.

Distribution

China (Yunnan, type locality, Fig. 1 ).

Figures

Figure 1. New distribution records of ctenid species from China and Vietnam. 1. Anahita menglun sp. n. 2. Bowie haiphong sp. n. 3. B. mengla sp. n. 4. B. zhengi sp. n. 5. Sinoctenus zhui.

Figure 5. Bowie zhengi sp. n., holotype male. a Palp, prolateral view; b Palp, ventral view, arrow 1 points at concave, arrow 2 points at protuberance; c Palp, retrolateral view, arrow points at protuberance. C = conductor, E = embolus, RPO = retro-proximal cymbial outgrowth, RTA = retrolateral tibial apophysis, TA = tegular apophysis. Scale bar: 0.50 mm (a - c).

Figure 6. Bowie zhengi sp. n. a Paratype female, epigyne, ventral view; b Paratype female, vulva, dorsal view; c Holotype male, habitus, dorsal view; d Holotype male, habitus, ventral view; e Paratype female, habitus, dorsal view; f Paratype female, habitus, ventral view. ET = epigynal teeth, FD = fertilisation duct, SP = spermathecae, SS = slit sensillum. Scale bars: 0.20 mm (a-b), 1.00 mm (c - f).