Crassignatha changyan
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Li2020ZooKeys988, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Li2020ZooKeys988">{{Citation See also the citation download page at the journal. |
Ordo: Araneae
Familia: Symphytognathidae
Genus: Crassignatha
Name
Crassignatha changyan Y. Lin & S. Li sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
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).
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). 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): 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).
Original Description
- Li, Y; Lin, Y; Li, S; 2020: A review of Crassignatha (Araneae, Symphytognathidae) ZooKeys, 988: 63-128. doi
Images
|
