Mosu Miller, Griswold &amp; Yin 2009, gen. n.
Creators: name: Miller, Jeremy
name: Griswold, Charles
name: Yin, Chang
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Mysmenidae
Mosu
Mosu nujiang

description: Genus <i>Mosu</i> Miller, Griswold &amp; Yin, gen. n. urn:lsid:zoobank.org:act: 4EC80790-32D9-47C6-A5CC-8AB4613A2D28 <b>Type species.</b> <i>Mosu nujiang</i> Miller, Griswold &amp; Yin, sp. n. <b>Etymology.</b> Named for the Mosu people, a traditionally matriarchal ethnic minority in Yunnan Province. The gender is masculine. <b>Diagnosis.</b> Female distinguished by the internal structure of the vulva, especially the round, sclerotized spermathecae with sclerotized fertilization ducts and the copulatory duct membranous and convoluted for most of its length, sclerotized at end of path near spermathecae (Fig. 43G, I); male unknown. <b>Description.</b> Femoral spots present on legs I and II. Abdomen with or without posterior tubercle. Vulva: Epigynum with bulbous, sclerotized spermathecae, short section of copulatory ducts near spermathecae sclerotized, rest of copulatory ducts membranous, convoluted; path occupies area both anterior and posterior of spermathecae. Fertilization ducts sclerotized, short, arise from mesal part of spermathecae and run more or less mesally (Fig. 43G, I). Ventral plate with a rounded lobe projecting posteriorly, with a small sclerotized process at apex (Fig. 43F, H). <b>Species.</b> <i>Mosu nujiang</i> sp. n., <i>M. huogou</i> sp. n. <i>Mysmena zhengi</i> Lin and Li, 2008 (which is known from the male) may also belong to this genus. <i>Mosu nujiang</i> Miller, Griswold &amp; Yin, sp. n. urn:lsid:zoobank.org:act: 354C0C81-05C6-4394-A50B-2751253C09B6 Figs 43 F-G, 100 <b>Material Examined.</b> Holotype: CHINA: Yunnan: Fugong Co., Pee He, 40 km S Shangpa, SW of R., 26.54323°N, 98.89837°E, 1153 m, 23 August 2005, sifting bamboo litter at cliff base, P. Paquin, PP-4905 (CASENT 9020484, HNU), 1 &amp;female;. Paratype: [same data as holotype] (CASENT 9020485, CAS), 1 &amp;female;; [same data as holotype] (CASENT 9020483, HNU), 1 &amp;female;, 2 juvs; Fugong Co., Lishadi, 5 km N Shangpa (Fungong), SW of river, 26.96025°N, 98.86606°E, 1247 m, 26 August 2005, sifting deciduous litter at base of rock cliffs, P. Paquin, PP-5305 (CASENT 9022532, CAS), 1 &amp;female;, 1 juv; Fugong Co., 4.5 km N Aludi Village, 22.1 km N Fugong, at stream entering NuJiang, 26.10829°N, 98.87162°E, 1263 m, 22 April 2004, C. Griswold, CGY05 (CASENT 9020715, CAS), 1 &amp;female;. <b>Etymology.</b> Named for the Nujiang or Nu River, also known as the Saalween. This species was never found far from this major river. The epithet is a noun in apposition. <b>Diagnosis.</b> Distinguished from <i>M. huogou</i> by the shape of the spermathecae, bulbous in <i>M. nujiang</i> (Fig. 43G), transversely ovoid in <i>M. huogou</i> (Fig. 43I), by the contact between the membranous copulatory ducts in the posteromedial region (Fig. 43G; separated in <i>M. huogou</i>, Fig. 43I), and by the presence of a posterior abdominal tubercle in <i>M. nujiang</i>, absent in <i>M. huogou</i>. <b>Description.</b> Carapace tan with dusky markings. Sternum tan with three dark arks, two anterolaterally, one posteriorly. Legs tan, darker distally on tibiae, metatarsi, and tarsi. Abdomen medium gray with tan and white spots, with chevron pattern between posterior tubercle and spinnerets. Vulva: Spermathecae bulbous, copulatory duct adjacent to spermathecae as sclerotized as spermathecae. Fertilization ducts run anteromesally. Membranous copulatory ducts in posteriomedian region touching (Fig. 43G). Female (CASENT 9022532): Total length 0.95, carapace 0.37 long, 0.36 wide, clypeus 0.08, sternum 0.24 long, 0.25 wide, coxa IV separated by 2.17 times their width. Macrosetae: Leg I: patella d1, tibia d1; Leg II: patella d1, tibia d1; Leg III: patella d1, tibia d1; Leg IV: patella d1, tibia d1. Metatarsal trichobothria: TmI: 0.31; TmII: 0.29; TmIII: 0.36. Leg measurements: see Appendix A. Male unknown. <i>Mosu nujiang</i> Miller, Griswold &amp; Yin, sp. n. urn:lsid:zoobank.org:act: 354C0C81-05C6-4394-A50B-2751253C09B6 Figs 43 F-G, 100 <b>Material Examined.</b> Holotype: CHINA: Yunnan: Fugong Co., Pee He, 40 km S Shangpa, SW of R., 26.54323°N, 98.89837°E, 1153 m, 23 August 2005, sifting bamboo litter at cliff base, P. Paquin, PP-4905 (CASENT 9020484, HNU), 1 &amp;female;. Paratype: [same data as holotype] (CASENT 9020485, CAS), 1 &amp;female;; [same data as holotype] (CASENT 9020483, HNU), 1 &amp;female;, 2 juvs; Fugong Co., Lishadi, 5 km N Shangpa (Fungong), SW of river, 26.96025°N, 98.86606°E, 1247 m, 26 August 2005, sifting deciduous litter at base of rock cliffs, P. Paquin, PP-5305 (CASENT 9022532, CAS), 1 &amp;female;, 1 juv; Fugong Co., 4.5 km N Aludi Village, 22.1 km N Fugong, at stream entering NuJiang, 26.10829°N, 98.87162°E, 1263 m, 22 April 2004, C. Griswold, CGY05 (CASENT 9020715, CAS), 1 &amp;female;. <b>Etymology.</b> Named for the Nujiang or Nu River, also known as the Saalween. This species was never found far from this major river. The epithet is a noun in apposition. <b>Diagnosis.</b> Distinguished from <i>M. huogou</i> by the shape of the spermathecae, bulbous in <i>M. nujiang</i> (Fig. 43G), transversely ovoid in <i>M. huogou</i> (Fig. 43I), by the contact between the membranous copulatory ducts in the posteromedial region (Fig. 43G; separated in <i>M. huogou</i>, Fig. 43I), and by the presence of a posterior abdominal tubercle in <i>M. nujiang</i>, absent in <i>M. huogou</i>. <b>Description.</b> Carapace tan with dusky markings. Sternum tan with three dark arks, two anterolaterally, one posteriorly. Legs tan, darker distally on tibiae, metatarsi, and tarsi. Abdomen medium gray with tan and white spots, with chevron pattern between posterior tubercle and spinnerets. Vulva: Spermathecae bulbous, copulatory duct adjacent to spermathecae as sclerotized as spermathecae. Fertilization ducts run anteromesally. Membranous copulatory ducts in posteriomedian region touching (Fig. 43G). Female (CASENT 9022532): Total length 0.95, carapace 0.37 long, 0.36 wide, clypeus 0.08, sternum 0.24 long, 0.25 wide, coxa IV separated by 2.17 times their width. Macrosetae: Leg I: patella d1, tibia d1; Leg II: patella d1, tibia d1; Leg III: patella d1, tibia d1; Leg IV: patella d1, tibia d1. Metatarsal trichobothria: TmI: 0.31; TmII: 0.29; TmIII: 0.36. Leg measurements: see Appendix A. Male unknown.
description: Published as part of <i>Miller, Jeremy, Griswold, Charles &amp; Yin, Chang, 2009, The symphytognathoid spiders of the Gaoligongshan, Yunnan, China (Araneae: Araneoidea): Systematics and diversity of micro-orbweavers, pp. 9-195 in ZooKeys 11 (11)</i> on pages 51-53, DOI: 10.3897/zookeys.11.160, http://zenodo.org/record/576459
description: {"references": ["Lin Y, Li S (2008) Mysmenid spiders of China (Araneae: Mysmenidae). Annales Zoologici 58: 487 - 520."]}