Smerasia, Zhao, Qingyuan & Li, Shuqiang, 2014

Zhao, Qingyuan & Li, Shuqiang, 2014, A survey of linyphiid spiders from Xishuangbanna, Yunnan Province, China (Araneae, Linyphiidae), ZooKeys 460, pp. 1-181: 38

publication ID

http://dx.doi.org/10.3897/zookeys.460.7799

publication LSID

lsid:zoobank.org:pub:EE2B4709-5F5C-4961-9CEF-081BA2CDFB2F

persistent identifier

http://treatment.plazi.org/id/A4D4DEBF-CEF9-1496-8E0C-2870C0A35EDA

treatment provided by

ZooKeys by Pensoft

scientific name

Smerasia
status

gen. n.

Taxon classification Animalia Araneae Linyphiidae

Genus Smerasia  gen. n.

Type species.

Smerasia obscurus  sp. n.

Etymology.

The generic name is a combination of ‘smer’ and ‘Asia’, ‘smer’ is the first a few letters of the genus name Smermisia  , which is similar to this new genus by the conformation of the male palp. Gender is masculine.

Diagnosis.

This genus resembles Neotropical genera Smermisia  Simon, 1894 and Myrmecomelix  Millidge, 1993 in the general appearence of the male palp and the conformation of embolic division ( Miller 2007). They all have a fig-like radix, and an erect anterior radical process. Smerasia  gen. n. differs from similar genera by having short and weakly sclerotized, less pointed, membranous embolus (Fig. 89 C–D) ( Miller 2007: figs 63-64, 104), and the paracymbium in Smerasia  gen. n. is attenuated at apex and much more curved in general (Fig. 89B). The epigyne in Smerasia  gen. n. is wide and with a convex dorsal fig (Fig. 91A), which is quite different from that in Smermisia  and Myrmecomelix  .

Description.

Small sized Erigoninae  . Carapace uniformly yellow. Male with modified carapace: PME area elevated with sulci behind PME and pit in them. Carapace unmodified in female. Abdomen pale with dark spinnerets area. Chelicerae in male with 5 promarginal and 5 retromarginal teeth, while female with 4 promarginal and 4 retromarginal teeth. Tibial spine formula: 2-2-1-1. TmI ca 0.80, TmIV ca 0.70.

Male palp: tibia with one short and straight dorsal apophysis; paracymbium with black, attenuated apex (Fig. 89B); protegulum small (Figs 89B, 92B); radix simple, fig-like, with short, broad tailpiece (Figs 89A, 92A); anterior radical process straight, curved, with a pointed tip (Figs 89A, 92A); distal suprategular apophysis with a broad tip (Fig. 89 C–D); embolus short, inconspicuous (Fig. 89A).

Epigyne: ventral fig wide, with rounded posterior margin (Figs 91A); dorsal fig mesally concave; copulatory ducts straight (Figs 91C); spermathecae with multi-chambers, the bigger one elliptical (Fig. 91C); fertilization ducts rather short (Fig. 91B).

Species composition.

Type species only: Smerasia obscurus  sp. n.

Distribution.

China.