Aposphragisma dentatum 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 dentatum

description: Aposphragisma dentatum Thoma, sp. nov.
(Fig. 15)
Type material. HOLOTYPE: female (PBI_OON 00031645), Kalimantan (INDONESIA), Berau District, Hutan Mayan Mangurai, c. 15 km SW of Tanjungredeb, 20 m [02°06′13′′N 117°24′05′′E; prov.], 30.IX.2008, secondary forest, leg. P. Schwendinger, deposited at MHNG.
Etymology. The species epithet is an adjective meaning ‘toothed’ in Latin and refers to the special denticles of the carapace margin.
Diagnosis. A. dentatum 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 with one pair of spikes (Fig. 15D); carapace margin with cogwheel-like denticles (den), sluice restricted to posterior margin (Figs. 15 D–E); epigastric scutum posterolaterally with a single curved ridge (cr) (Fig. 15G). It differs from similar but allopatric A. kolleri sp. nov. by the shape of the denticles on the carapace margin, the very long claws (almost as long as tarsi; Fig. 15H) and the shorter body length.
Description. Description based on 1 female.
FEMALE. With the characters of the genus except as noted. Body length 1.95 mm, carapace length 0.90 mm; sclerotized parts uniformly coloured orange-brown approaching colour 340 ‘robin rufous’; legs slightly paler than body, pale orange. Habitus: Figs. 15 A–C.
CEPHALOTHORAX. Carapace: surface of elevated portion of pars cephalica smooth, sides strongly reticulate, partly interrupted by small smooth areas (Figs. 15 C–D); posterior edge of pars cephalica with one pair of spikes (csp) (Figs. 15 C–D); carapace margin with sluice restricted to posterior margin (Fig. 15D); denticles (den) on carapace margin blunt, becoming more and more two-lobed (and thus rather heart-shaped) on posterior half of margin (carapace margin appears cogwheel-like; Figs. 15 D–E). Eyes: posterior eye-row straigth from above, procurved from front; ALE largest, separated by their radius to diameter; ALE-PLE separated by less than ALE radius; PME touching throughout most of their length; PLE-PME separated by less than PME radius. Sternum finely ornamented except short smooth median stripe (Fig. 15E); posterior margin with broad single extension, covered with blunt denticles (Fig. 15E). Pleura: surface smooth with pairs of large pits dorsally of each coxa I, II and III.
ABDOMEN. Book lung covers (bc) large, elongated, dumbbell-shaped (i.e. sides concave), about 6 times longer than wide (Fig. 15F). Epigastric scutum dorsally with widely oval subterminal ridge (sr) (Fig. 15F), posterolaterally with a single curved ridge (cr) (Fig. 15G); scuto-pedicel region with slightly swollen hair bases. Postepigastric scutum almost semicircular, with short posteriorly directed lateral apodemes (Fig. 15G).
LEGS. Tarsi I–IV with very long claws (almost as long as tarsi; Fig. 15H).
Distribution. NE-Kalimantan, INDONESIA. (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 30, DOI: 10.11646/zootaxa.3798.1.1, http://zenodo.org/record/4431865