Crassignatha yamu Miller, Griswold & Yin, 2009

Li, Ya, Lin, Yucheng & Li, Shuqiang, 2020, A review of Crassignatha (Araneae, Symphytognathidae), ZooKeys 988, pp. 63-128 : 63

Crassignatha yamu Miller, Griswold & Yin, 2009 Figs 34 , 35 , 38

Crassignatha yamu Miller et al., 2009: 73, figs 76H, I, 86A-C, 87A, B (♂♀).

Type material.

Holotype ♂ (HNU-CASENT 9029321) and paratype 1♀ (HNU-CASENT 9020752), China: Yunnan Province, Fugong County, S fork Yamu River, 1.51 km 150° SW of confluence [with N Fork], Gaoligongshan, moist shaded embankments (27.11905°N, 98.83108°E; 1723 m), 26.IV.2004, C. Griswold leg.; paratypes 2♀ (HNU-CASENT 9020736), China: Yunnan Province, Fugong County, 10th km W NuJiang on Shibali Rd., N fork Yamu River, Gaoligongshan, moist earthen embankments (27.13795°N, 98.82240°E; 1850 m), 25.IV.2004, C. Griswold leg. Examined.

Other material examined.

6♂ 8♀ (NHMSU-HA115), China: Yunnan Province, Fugong County, Yamu River, ca. 1.51 km on 150° SW from confluence [with N fork], Gaoligongshan, moist shaded embankments (27.11905°N, 98.83108°E; 1723 m), 18.VIII.2018, Y. Lin et al.; 1♂ (NHMSU-HA115) and 1♀ (NHMSU-HA115) used for sequencing, GenBank: MT992011 and MT992010, same data as for preceding; 3♂ 7♀ (NHMSU-HA116), China: Yunnan Province, Fugong County, Shilajia Village, near estuary of Yamu River (27.13440°N, 98.82625°E; 1792 m), 18.VIII.2018, Y. Lin et al. leg.

Diagnosis.

The male of C. yamu is most similar to that of C. haeneli , C. danaugirangensis , and C. shiluensis in the form of the palp and the long, linear embolus but differs from C. haeneli and C. danaugirangensis by the spiral embolus on the ventral portion of the palpal bulb (Fig. 25B vs. Wunderlich 1995: figs 18, 19; Miller et al. 2004: fig. 4); from C. shiluensis by having fewer loops of the embolus (Fig. 35B vs. Fig. 27A ). The female is similar to that of C. gudu and C. si in vulva configuration and the course of the copulatory ducts but can be easily distinguished by having the columnar atrium longer than in C. gudu and shorter than in C. si (Fig. 35G vs. Figs 11F , 31F ).

Description.

See Miller et al. (2009).

Distribution.

China (Yunnan) (Fig. 38 ).

Figures

Figure 11. Female of Crassignatha gudu A prosoma, dorsal B prosoma, ventral C abdomen, dorsal D abdomen, ventral E vulva, ventral F vulva, dorsal. Scale bars: 0.50 mm (A-D); 0.10 mm (E, F).

Figure 25. Crassignatha rostriformis sp. nov. A male palp, prolateral B male palp, ventral C male palp, retrolateral D epigyne, ventral E vulva, ventral F vulva, dorsal. Scale bars: 0.10 mm (A-F).

Figure 27. Crassignatha shiluensis (Lin & Li, 2009) comb. nov. A male palp, prolateral B male palp, retrolateral C epigyne, ventral D vulva, ventral E vulva, dorsal. Scale bars: 0.10 mm (A-E).

Figure 31. Crassignatha si sp. nov. A right male palp, prolateral B right male palp, ventral C right male palp, retrolateral D epigyne, ventral E vulva, ventral F vulva, dorsal. Scale bars: 0.10 mm (A-F).

Figure 34. Crassignatha yamu Miller, Griswold & Yin, 2009 A male habitus, dorsal B male habitus, ventral C male habitus, lateral D female habitus, dorsal E female habitus, ventral F female habitus, lateral. Scale bars: 0.50 mm (A-F).

Figure 35. Crassignatha yamu Miller, Griswold & Yin, 2009 A male palp, prolateral B male palp, ventral C male palp, retrolateral D epigyne, ventral E epigyne, lateral F vulva, ventral G vulva, dorsal. Scale bars: 0.10 mm (A-G).

Figure 38. Distribution records of Crassignatha spp. in Asia. 1 C. baihua sp. nov. 2 C. bangbie sp. nov. 3 C. bicorniventris 4 C. changyan sp. nov. 5 C. danaugirangensis 6 C. dongnai sp. nov. 7 C. ertou 8 C. gucheng sp. nov. 9 C. gudu 10 C. haeneli 11 C. mengla sp. nov. 12 C. nantou sp. nov. 13 C. nasalis sp. nov. 14 C. pianma 15 C. quadriventris 16 C. quanqu 17 C. rostriformis sp. nov. 18 C. shiluensis 19 C. shunani sp. nov. 20 C. si sp. nov. 21 C. thamphra sp. nov. 22 C. xichou sp. nov. 23 C. yamu 24 C. yinzhi.