Crassignatha changyan Y. Lin & S. Li, 2020

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

publication ID

https://dx.doi.org/10.3897/zookeys.988.56188

publication LSID

lsid:zoobank.org:pub:6E64D69B-DD73-4A7E-AE2B-3CD21247A5E3

persistent identifier

https://treatment.plazi.org/id/A38088C0-07EC-487E-A343-A5553A682FB8

taxon LSID

lsid:zoobank.org:act:A38088C0-07EC-487E-A343-A5553A682FB8

treatment provided by

ZooKeys by Pensoft

scientific name

Crassignatha changyan Y. Lin & S. Li
status

sp. nov.

Crassignatha changyan Y. Lin & S. Li View in CoL sp. nov. Figs 5 View Figure 5 , 38 View Figure 38

Type material.

Holotype ♀ (NHMSU Ar 014) and paratypes 3♀ (NHMSU Ar 015-017), China: Yunnan Province, Lushui County, Pianma Township, Changyan River, 9.3 km ESE Pianma, mixed broadleaf deciduous and evergreen forest, dusting small webs near ground in forest understory (25.99363°N, 98.66651°E; 2470 m), 10.VIII.2018, Y. Lin et al. leg.

Diagnosis.

Crassignatha changyan sp. nov. is similar to C. xichou sp. nov. but differs by the copulatory ducts diagonally linked to the copulatory opening but vertically linked in the latter (Fig. 5E, F View Figure 5 ).

Description.

Female (holotype). Total length 0.88. Carapace 0.36 long, 0.32 wide, 0.36 high. Clypeus 0.14 high. Sternum 0.20 long, 0.20 wide. Abdomen 0.56 long, 0.56 wide, 0.60 high. Length of legs: I 1.12 (0.34, 0.20, 0.20, 0.14, 0.24); II 0.96 (0.32, 0.12, 0.16, 0.12, 0.24); III 0.78 (0.26, 0.10, 0.14, 0.08, 0.20); IV 0.98 (0.32, 0.12, 0.18, 0.12, 0.24).

Somatic characters (Fig. 5A-C View Figure 5 ). Coloration: prosoma and abdomen dark, genital area and spinnerets slightly pale. Legs pale brown, with dark pigmentation. Prosoma: carapace nearly pear shaped. PER recurved. Chelicerae bears setae anteriorly. Labium semilunar. Sternum heart shaped, smooth, slightly swollen, truncated posteriorly. Legs: a distal seta on patella dorsally, two on tibia dorsally. Abdomen: globose, modified by sparse, long setae and faint dots. Spinnerets distally pale.

Epigyne (Fig. 5D-F View Figure 5 ): epigynal area with a few setae. Scape knobbed. Paired spermathecae globose, widely separated by at least 1.5 × their diameter. Copulatory ducts connected to ventral center of spermathecae, twisting into an S-shaped under spermathecae, and merging anteriorly with copulatory openings. Copulatory openings located below scape. Fertilization ducts starting at inside margin of spermathecae, then curving posteriorly.

Male. Unknown.

Etymology.

The specific name is derived from the type locality; noun in apposition.

Distribution.

China (Yunnan) (Fig. 38 View Figure 38 ).