Xestaspis semengoh Eichenberger & Kranz-Baltensperger & Ott & Graber & Nentwig & Kropf 2012, n. sp.
Creators: name: Eichenberger, Beata
name: Kranz-Baltensperger, Yvonne
name: Ott, Ricardo
name: Graber, Werner
name: Nentwig, Wolfgang
name: Kropf, Christian
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Oonopidae
Xestaspis
Xestaspis semengoh

description: Xestaspis semengoh Eichenberger n. sp.
(Figs. 41–42)
Type material: Holotype male (PBI_OON 00031783): West Sarawak, Semengoh Arboretum, lower track, sieving leaflitter, 23 March 1985, coll. Deeleman, leg. C.L. en P.R. Deeleman (RMNH). Female paratype (PBI_OON 00031782), West Sarawak, Semengoh Arboretum, litter, humus, wood, 27 March 1985, coll. Deeleman, leg. C.L. en P.R. Deeleman (RMNH).
Etymology: The species epithet refers to the Semengoh wildlife centre in Sarawak which is the type locality.
Diagnosis: Resembles Gamasomorpha taprobanica Simon, 1893 but sternum with rows of large, rather channellike than droplike pits between coxae I-II, II-III and III-IV (fig. 41 D); abdomen scutopedicel region without second more dorsal ridge (fig. 42. A); carapace posterolateral edges with small, laterally located pits (cpp) (figs. 41. F, H); male palpal conductor (co) distal part curved ventrally, distal tip rounded, without ventral excavation (figs. 42. G–H).
Description: MALE: Body length 2.3 mm. Uniformely orange-brown colored species (figs. 41. A–C). Carapace broadly oval in dorsal view; pars cephalica quite strongly elevated in lateral view, without posterolateral spikes, surface sides granulate (figs. 41 E–F), lateral margin straight from dorsal view, cephalic setae u-shaped in double row, transverse row of setae at posterior end of cephalothorax proximally originating from tiny, blunt denticles. Anterior lateral eyes separated from edge of carapace by their radius or more, eye group by less than diameter of anterior lateral eyes narrower than clypeus, all ovoid, subequal (fig. 41. G). Sternum anterior margin with continuous transverse groove (ctg) (fig. 41. D). Abdomen scuto-pedicel region with paired curved scutal ridges (psr) with triangular projections (fig. 42. A), pedicel tube with small, dorsolateral, triangular extensions (pds), (fig. 42. A), booklung covers (boc) small, elliptical, border elevated from surface, anterolateral edge with tubercle (figs. 42. B–C); postepigastric scutum with short, posteriorly directed, lateral apodemes. Legs patella plus tibia shorter than carapace. No detailed description on promarginal chelicerae setae, serrula, grooves on lateral margin of sternum, trichobothria hood structure, tarsal organ and scopula between claws. Male genitalia: Similar to X. kandy n. sp. with a long slender, lamellar embolus (em), adjacent to an embolic accessory appendage (ma) and a lamellar conductor (co) (fig. 42. E–H). Bulbus distally tapering into a strongly pointed conical extension (ce) (figs. 42. E–F).
FEMALE: Body length 2.4 mm. Postepigastric scutum without lateral apodemes; colulus presented only by setae. Female genitalia: Ventral view (fig. 42. D): Without external features.
Distribution: West Sarawak, Semengoh Arboretum.
description: Published as part of Eichenberger, Beata, Kranz-Baltensperger, Yvonne, Ott, Ricardo, Graber, Werner, Nentwig, Wolfgang & Kropf, Christian, 2012, Morphology of new Indian / Indonesian Gamasomorpha and Xestaspis species (Araneae: Oonopidae) 3160, pp. 1-68 in Zootaxa 3160 (1) on page 53, DOI: 10.11646/zootaxa.3160.1.1, http://zenodo.org/record/5246927