Mysmena rostella Lin & Li, 2008

Zhang, Qiuqiu, Li, Shuqiang & Lin, Yucheng, 2022, Taxonomic study on Mysmenidae spiders (Mysmenidae, Araneae) from Xishuangbanna of Yunnan, China, ZooKeys 1124, pp. 59-108 : 59

publication ID	https://dx.doi.org/10.3897/zookeys.1124.85952
publication LSID	lsid:zoobank.org:pub:09D04DEB-58C2-4007-AA86-56ACABDE7BE3
persistent identifier	https://treatment.plazi.org/id/3A9F5D00-6284-5B50-BCA0-29E1C49E377C
treatment provided by	ZooKeys by Pensoft
scientific name	Mysmena rostella Lin & Li, 2008
status

Treatment

Figs 27 View Figure 27 , 28 View Figure 28 , 29 View Figure 29

Mysmena rostella Lin & Li, 2008: 492, fig. 5A-I (♂).

Type material.

Holotype ♂ (IZCAS), China: Yunnan, Mengla, XTBG, secondary tropical montane evergreen broad-leaved forest (21.963°N, 101.200°E; 895 ± 10 m), by searching, 6.VIII.2007, G. Zheng leg. Examined.

Other material examined.

6♂ 6♀ (IZCAS), China: Yunnan, Mengla, Menglun Nature Reserve , secondary tropical montane evergreen broad-leaved forest (21.913°N, 101.191°E; 880 ± 15 m), by pitfall trapping, 16-31.V.2007, G. Zheng leg. GoogleMaps ; 2♂ 3♀ (NHMSU), China: same site as for preceding (21.914°N, 101.211°E; 876 ± 15 m), by pitfall trapping, 1-15.IV.2007, G. Zheng leg. GoogleMaps

Diagnosis.

Mysmena rostella is similar to M. luosuo sp. nov. in the shape of male palp and the configuration of vulva (cf. Figs 28C, D View Figure 28 , 29B, C View Figure 29 and Figs 25D, E View Figure 25 , 26B, C View Figure 26 ), but males can be distinguished by having five pairs of modified spines on the chelicerae, three pairs in M. luosuo (Fig. 27C View Figure 27 vs. Fig. 24C View Figure 24 ), and by longer embolus extending prolaterally, shorter embolus coils only at the top of bulbus in M. luosuo (Fig. 28A, C View Figure 28 vs. Fig. 25A, B, D View Figure 25 ). Females distinguished from M. luosuo by the reniform spermathecae, but near globular in M. luosuo (Fig. 29C View Figure 29 vs. Fig. 26C View Figure 26 ).

Description.

Male. See Fig. 27A-D View Figure 27 and Lin and Li (2008): 492, 495.

Palp (Fig. 28A-D View Figure 28 ): orange, comparatively large. Except for retrolateral region, a row of long setae almost encircled the distal brim of tibia (Fig. 28A-D View Figure 28 ). Cymbium nearly transparent, tip specialized as cymbial conductor, a distal keel on outer wall of cymbium conductor, the cymbial process tip shape, parallel to the cymbial conductor (Fig. 28A-D View Figure 28 ). Paracymbium big, with long setae (Fig. 28B View Figure 28 ). Bulb ball shape, embedded in a translucent membranous tegulum. Tegulum with apical apophysis. Embolus long and winding, the tip interacts with cymbial conductor. Spermatic ducts can be seen through tegulum (Fig. 28D View Figure 28 ).

New morphological data.

Female. Measurements: total length 0.57 Prosoma 0.18 long, 0.21 wide, 0.18 high. Abdomen 0.39 long, 0.38 wide, 0.36 high. Clypeus 0.05 high. Sternum 0.16 long, 0.14 wide. Length of legs: I 0.61 (0.17, 0.07, 0.15, 0.12, 0.10); II 0.52 (0.18, 0.08, 0.12, 0.08, 0.06); III 0.52 (0.16, 0.08, 0.12, 0.07, 0.09); IV 0.50 (0.14, 0.08, 0.12, 0.10 0.06).

Somatic characters (Fig. 27E-G View Figure 27 ). Coloration: prosoma brown-yellow, endites brown, labium white, sternum brown with four yellow spots, ocular base black. Abdomen yellow dorsally, brown ventrally, with white and yellow spots. Legs brown-yellow. Prosoma: carapace nearly pear-shaped. The eight eyes in two rows, AER and PER straight in dorsal view. Chelicerae, endites and labium rectangle, and sternum scutiform, covered with short setae. Legs: number of setae and bristles same as in male, a sclerotized subdistal-ventral femoral spot present at surface of leg I and II. Abdomen: as in male.

Epigyne (Fig. 29A-C View Figure 29 ): the scape short and thick, and the surface with fine folds (Fig. 29B View Figure 29 ). Spermathecae small, nearly semicircle. Fertilization ducts short, derived from lateral of spermathecae, twisted anteriorly and then extended to the anterior of spermathecae. Copulatory ducts slightly sclerotized, coiled around the spermathecae, hooklike symmetrically, connected to the ventral of spermathecae (Fig. 29B, C View Figure 29 ).

Distribution.

Southwestern China (Yunnan).

Remarks.

The female description of M. rostella is provided for the first time.