Aposphragisma dayak Thoma 2014, sp. nov.
Creators: name: THOMA, MARCO
name: KRANZ-BALTENSPERGER, YVONNE
name: KROPF, CHRISTIAN
name: GRABER, WERNER
name: NENTWIG, WOLFGANG
name: FRICK, HOLGER
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Oonopidae
Aposphragisma
Aposphragisma dayak

description: Aposphragisma dayak Thoma, sp. nov.
(Fig. 14)
Type material. HOLOTYPE: female (PBI_OON 00016222), Belait District (BRUNEI), Labi Hills Forest Reserve, Teraja, 42 km S of Sungai Liang, 12 km S of Labi, 40 m [04°17′N 114°25′E; inf.], 22.XI.1988, forêt primaire (mixed dipterocarp forest), prélèvement de sol au pied d’un grand arbre, leg. B. Hauser, deposited at MHNG.
Etymology. The species epithet is a noun in apposition and the general term for the indigenous peoples of Borneo.
Diagnosis. A. dayak sp. nov. is only known from one female. It belongs to the stripe-clade and can be distinguished from other species of this clade by the combination of the following traits: carapace without spikes (Figs. 14C, E); carapace margin with blunt denticles, sluice restricted to posterior margin (Fig. 14C); epigastric scutum posterolaterally with a row of longitudinal ridges. The new species resembles A. baltenspergerae sp. nov., A. borgulai sp. nov. and A. brunomanseri sp. nov. It differs from A. baltenspergerae sp. nov. and A. borgulai sp. nov. amongst others in sternum pattern and shape of postepigastric scutum. Sympatric A. brunomanseri sp. nov. has two pairs of spikes, longer abdominal setae, a knob-like apophysis projecting from the posterior margin of the sternum and (in females only) a pair of single curved ridges on the epigastric scutum.
Description. Description based on 1 female.
FEMALE. With the characters of the genus except as noted. Body length 1.69 mm, carapace length 0.73 mm. Sclerotized parts uniformly coloured orange-brown close to colour 136 ‘raw sienna’; legs pale orange, much paler than body. Habitus: Figs. 14 A–B.
CEPHALOTHORAX. Carapace: surface of elevated portion of pars cephalica smooth, sides strongly reticulate, partly interrupted by small smooth areas (Figs. 14C, E); posterolateral surface without spikes; posterior edge of pars cephalica with a pair of modified hair bases (pch), appearing as small ‘horns’ (Figs. 14E); carapace margin with sluice restricted to posterior margin, with large blunt denticles (Fig. 14C). Eyes: posterior eye-row straight from above, procurved from front (Figs. 14C, F); ALE largest, separated by less than their radius; ALE-PLE separated by less than ALE radius; PME touching throughout most of their length; PLE-PME separated by less than PME radius. Sternum coarsely ornamented except smooth median stripe and broadly smooth edges (ornamentation arranged as oval band; Fig. 14D); posterior margin expanded as broad single extension, covered with blunt denticles, posteriorly without knob-like apophysis (Fig. 14D, cf A. brunomanseri sp. nov.). Pleura: surface smooth with pairs of large pits dorsally of each coxa I, II and III.
ABDOMEN. Book lung covers (bc) large, elongated elliptical to egg-shaped (i.e. sides convex), about 3 times longer than wide (Fig. 14G). Epigastric scutum dorsally with widely oval subterminal ridge (sr) (Fig. 14G), posterolaterally with a row of longitudinal ridges. Postepigastric scutum long, semicircular, with short posteriorly directed lateral apodemes (lap) (Fig. 14H).
Distribution. Belait District, BRUNEI (Fig. 49).
description: Published as part of THOMA, MARCO, KRANZ-BALTENSPERGER, YVONNE, KROPF, CHRISTIAN, GRABER, WERNER, NENTWIG, WOLFGANG & FRICK, HOLGER, 2014, The new Southeast Asian goblin spider genus Aposphragisma (Araneae, Oonopidae): diversity and phylogeny, pp. 1-86 in Zootaxa 3798 (1) on page 27, DOI: 10.11646/zootaxa.3798.1.1, http://zenodo.org/record/4431865