Aposphragisma dentatum Thoma, 2014

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, Zootaxa 3798 (1), pp. 1-86 : 30

publication ID	https://doi.org/ 10.11646/zootaxa.3798.1.1
publication LSID	lsid:zoobank.org:pub:CB8534BA-89CB-44A6-81E3-3A8927055C7A
DOI	https://doi.org/10.5281/zenodo.4431895
persistent identifier	https://treatment.plazi.org/id/094F426D-FF8B-FFC0-6FC9-F2F7814EFAFF
treatment provided by	Plazi
scientific name	Aposphragisma dentatum Thoma
status	sp. nov.

Treatment

Aposphragisma dentatum Thoma View in CoL , sp. nov.

( Fig. 15 View FIGURE 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. GoogleMaps

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 View FIGURE 15 ); carapace margin with cogwheel-like denticles (den), sluice restricted to posterior margin ( Figs. 15 View FIGURE 15 D–E); epigastric scutum posterolaterally with a single curved ridge (cr) ( Fig. 15G View FIGURE 15 ). 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 View FIGURE 15 ) 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 View FIGURE 15 A–C.

CEPHALOTHORAX. Carapace: surface of elevated portion of pars cephalica smooth, sides strongly reticulate, partly interrupted by small smooth areas ( Figs. 15 View FIGURE 15 C–D); posterior edge of pars cephalica with one pair of spikes (csp) ( Figs. 15 View FIGURE 15 C–D); carapace margin with sluice restricted to posterior margin ( Fig. 15D View FIGURE 15 ); 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 View FIGURE 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 View FIGURE 15 ); posterior margin with broad single extension, covered with blunt denticles ( Fig. 15E View FIGURE 15 ). 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 View FIGURE 15 ). Epigastric scutum dorsally with widely oval subterminal ridge (sr) ( Fig. 15F View FIGURE 15 ), posterolaterally with a single curved ridge (cr) ( Fig. 15G View FIGURE 15 ); scuto-pedicel region with slightly swollen hair bases. Postepigastric scutum almost semicircular, with short posteriorly directed lateral apodemes ( Fig. 15G View FIGURE 15 ).

LEGS. Tarsi I–IV with very long claws (almost as long as tarsi; Fig. 15H View FIGURE 15 ).

Distribution. NE-Kalimantan, INDONESIA. ( Fig. 49 View FIGURE 49 ).