Crassignatha gudu Miller, Griswold & Yin, 2009

Miller, Jeremy, Griswold, Charles & Yin, Chang, 2009, The symphytognathoid spiders of the Gaoligongshan, Yunnan, China (Araneae: Araneoidea): Systematics and diversity of micro-orbweavers, ZooKeys 11 (11), pp. 9-195 : 75-76

Crassignatha gudu Miller, Griswold & Yin , sp. n.

urn:lsid:zoobank.org:act:EC5C403D-7C79-4A0B-9456-4DDC9CE59396

Fig. 89 C-D, 96

Material Examined. Holotype: CHINA: Yunnan: Longling Co., Mangkuan Township, Zaotang He at Baihualing village , 25.30450°N, 98.80059°E, 1635 m, 2 June 2005, good subtropical broadleaf forest, dusting webs in understory, C. Griswold, CGY135 (CASENT 9029318, HNU), 1 ♀.

Etymology. Formed from the Chinese word for solitary (gū dú) since this species is known from only one sex.

Diagnosis. Female distinguished from other Crassignatha species except C. yamu by the duct path, which runs from the posterior margin of the epigynum anteriorly to the region between the spermathecae before turning, meeting, and running in parallel to the copulatory opening ( Fig. 89D ); C. gudu distinguished from C. yamu by the region where the the ducts meet before running to the copulatory openings; in C. gudu , the ducts curve and come together near the posterior margin of the spermathecae ( Fig. 89D ) while in C. yamu , the ducts run straight and come together at a nearly 90° angle near the midpoint of the spermathecae ( Fig. 76I ).

Description. Carapace orange, darker laterally and in head region, tuberculate laterally. Sternum orange. Legs orange, darker distally on tibiae, metatarsi, and tarsi, femora I and II slightly swollen basally. Abdomen subspherical, dark gray, lighter anterodorsally, with numerous small light sclerotized patches concentrated dorsally along longitudinal axis, without sclerite around spinnerets.

Vulva : Scape projects posteroventrally (Fig, 89C). Spermathecae separated by their diameter. Ducts arise from posterior part of spermathecae, follow complex path, meet between spermathecae near their posterior margin before running to opening near scape apex ( Fig. 89D ).

Female (CASENT 9029318): Total length 0.92, carapace 0.42 long, 0.37 wide, clypeus 0.08, sternum 0.25 long, 0.26 wide, coxa IV separated by 2.00 times their width. Leg I: tibia p1 (no other macrosetae). Metatarsal trichobothria: TmI: 0.41; TmII: 0.38; TmIII: absent. Leg measurements: see Appendix A.

Male unknown.

Figures

Figure 76. A, B, Crassignatha pianma sp. n. from Chang Yan He; C, D, Crassignatha yinzhi from Xiao Hei Shan Nature Reserve; E-G, Crassignatha quanqu sp. n. from Bang Bie village; H, I, Crassignatha yamu sp. n. from Yamu He. A, F, epigynum, lateral view; B, D, G, I, cleared vulva, dorsal view; C, E, H, epigynum, ventral view. CD: copulatory duct; S: spermatheca.

Figure 89. A, B, Crassignatha ertou sp. n. from Zaotang He; C, D, Crassignatha gudu sp. n. from Zaotang He; E, F, Crassignatha longtou sp. n. from Yamu He. A, C, E, epigynum, ventral view; B, D, F, cleared vulva, dorsal view. CD: copulatory duct; S: spermatheca.

Figure 96. Distribution map, inset map shows study area. Black: Wendilgarda muji sp. n.; yellow: Mysmena changouzi sp. n.; blue: Mysmena bizi sp. n.; red: Mosu huogou sp. n.; purple: Crassignatha quanqu sp. n.; white: Crassignatha gudu sp. n.