Pseudopoda byssina Zhang, Jäger & Liu, 2023
publication ID |
https://doi.org/ 10.11646/megataxa.9.1.1 |
DOI |
https://doi.org/10.5281/zenodo.7658112 |
persistent identifier |
https://treatment.plazi.org/id/5C13750E-F95E-DA7C-5CA9-FC3976334B83 |
treatment provided by |
Plazi |
scientific name |
Pseudopoda byssina Zhang, Jäger & Liu |
status |
sp. nov. |
Pseudopoda byssina Zhang, Jäger & Liu , spec. nov. Figs 35–37 View FIGURE 35 View FIGURE 36 View FIGURE 37 , Map 2
Type material. THAILAND, Chiang Mai Province: Holotype male from Doi Phahom Pok [20.04°N, 99.14°E], 1000 m, 15 December 2002, P. Dankittipakul leg. ( MHNG, MHNG0019 View Materials ) GoogleMaps . Paratypes: 2 females, with same data as for holotype ( MHNG, MHNG0020 View Materials – MHNG0021 View Materials ) GoogleMaps .
Etymology. The specific name is derived from the Latin adjective byssinus, - a, - um, meaning “filamentous”, referring to the thin and long E; adjective.
Diagnosis. The male of P. byssina Zhang, Jäger & Liu , spec. nov. is similar to that of P. dao Jäger, 2001 (Jäger 2001) by having an extremely elongated E, a strong retrolateral cymbial bulge and a proximally arising RTA sticking out at a right angle from palpal tibia, but can be distinguished by: 1) E with a projection at its basal part; 2) T elongated resulting in a straight part of the spermophor in longitudinal axis; (E without such projection, T suboval with spermophor rounded in P. dao ). The female of P. byssina Zhang, Jäger & Liu , spec. nov. similar to that of P. parvipunctata Jäger, 2001 (Jäger 2001) in having a very similar course of IDS, but can be easily distinguished by the LL with prominent postero-laterad extensions, unseen in the entire genus, and LL not touching each other medially (LL rounded and touching each other in P. parvipunctata ).
MALE (MHNG0019): Measurements: Medium sized. Body length 11.0, DS length 5.3, width 4.6, OS length 5.7, width 3.2. Eyes: AME 0.21, ALE 0.32, PME 0.25, PLE 0.36, AME–AME 0.21, AME–ALE 0.13, PME–PME 0.27, PME–PLE 0.46, AME–PME 0.37, ALE–PLE 0.32, CH AME 0.47, CH ALE 0.40. Spination: Pp 131, 101, 2111; Fe I–II 323, III 322, IV 321; Pa I–IV 101; Ti I–II 2226, III–IV 2126; Mt I–III 2024, IV 3036. Measurements of palps and legs: Pp 8.8 (2.5, 1.2, 1.5, –, 3.6); I 21.5 (6.1, 2.1, 5.9, 5.5, 1.9); II 24.5 (6.6, 2.7, 7.4, 6.1, 2.1); III 17.7 (5.3, 1.7, 4.9, 4.4, 1.4); IV 20.8 (6.3, 1.4, 5.3, 5.8, 2.0). Leg formula: II-I-IV-III. Cheliceral furrow with ca. 27 denticles.
Palp ( Figs 35A–C View FIGURE 35 ): As in diagnosis. C arising from T at 12:00 o’clock position, broadly fanned apically. E arising from T at 6:30 o’clock position, long, running in three loops, tip situated close to conductor. Spermophor S-shaped. Both, vRTA and dRTA flattened and blunt in ventral view, RTA concave apically in retrolateral view.
Colouration ( Figs 37A–B View FIGURE 37 ): DS reddish brown with dark spots. Fovea distinctly marked with elongated “X”, striae marked with rows of dots. OS dorsally reddishbrown interspersed with yellow dots, becoming darker posteriorly, until a transverse yellow patch in posterior part. OS ventrally with reddish brown marks, irregularly arranged, becoming more denser in front of spinnerets.
FEMALE (MHNG0020): Measurements: Medium sized. Body length 12.8–13.1, DS length 5.7, width 5.1, OS length 7.4, width 5.2. Eyes: AME 0.21, ALE 0.35, PME 0.26, PLE 0.33, AME–AME 0.21, AME–ALE 0.13, PME–PME 0.28, PME–PLE 0.47, AME–PME 0.41, ALE–PLE 0.32, CH AME 0.51, CH ALE 0.46. Spination: Pp 131, 101, 2121, 1014; Fe I–II 323, III 322, IV 321; Pa I–II 001, III–IV 101; Ti I 1016, II–IV 2026; Mt I–II 1014, III 3024, IV 3036. Measurements of palps and legs: Pp 7.1 (1.9, 1.0, 1.6, –, 2.6); I 18.0 (5.0, 2.3, 4.8, 4.3, 1.6); II 21.4 (5.8, 2.6, 6.2, 5.0, 1.8); III 15.4 (4.7, 1.9, 3.9, 3.5, 1.4); IV 17.2 (5.5, 1.4, 4.1, 4.5, 1.7). Leg formula: II-I-IV-III. Cheliceral furrow with ca. 25 denticles.
Epigyne ( Figs 36A–C View FIGURE 36 ): As in diagnosis. EF wider than long, with tiny AB situated in anterior concavity. Anterior margins of LL forming an open V-shaped structure. LL forming wide cones, these bluntly tapering apically. Parts of IDS seen laterally from FW in dorsal view, other parts are hidden by FW and LL.
Colouration ( Figs 37C–D View FIGURE 37 ): As in male.
Distribution. Thailand (Chiang Mai Province).
MHNG |
Museum d'Histoire Naturelle |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
Kingdom |
|
Phylum |
|
Class |
|
Order |
|
Family |
|
Genus |