Aposphragisma sepilok 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 : 69-72

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.4431947
persistent identifier	https://treatment.plazi.org/id/094F426D-FFD2-FF9A-6FC9-F770871CFD29
treatment provided by	Plazi
scientific name	Aposphragisma sepilok Thoma
status	sp. nov.

Treatment

Aposphragisma sepilok Thoma View in CoL , sp. nov.

( Figs. 46–47 View FIGURE 46 View FIGURE 47 )

Type material. HOLOTYPE: male ( PBI_OON 00012112 ), Sabah ( MALAYSIA), 24 km W of Sandakan, KabiliSepilok forest reserve [05°50′N 117°56′E; inf.], 23.IV.1982, secondary lowland forest, “forêt près du ‘pond’ (étang formant la reserve d’eau pour Sepilok), tamisage de feuilles mortes et de bois pourri”, leg. B. Hauser, deposited at MHNG; GoogleMaps PARATYPES: 1 female ( PBI_OON 00015274 ), Sabah ( MALAYSIA), Kabili-Sepilok-Forest reserve [05°50′N 117°56′E; inf.], 12.III.1983, forêt près de l’Orang-Utan Rehabilitation Station, Eusideroxylon zwangeri et Pometia pinnata , leg. B. Hauser, deposited at MHNG; GoogleMaps 1 female ( PBI_OON 00031409 ), collected together with holotype, deposited at MHNG.

Etymology. The species epithet refers to the type locality at Kabili-Sepilok-Forest reserve, on Borneo.

Diagnosis. A. sepilok sp. nov. 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; carapace margin with blunt denticles, sluice restricted to posterior margin ( Fig. 46B View FIGURE 46 ); epigastric scutum in females posterolaterally with a pair of single curved ridges (cr) ( Fig. 47E View FIGURE 47 ). The granulate surface of the carapace sides and the tiny eyes seperate the new species from all congeners.

Description. Description based on 1 male and 2 females.

MALE. With the characters of the genus except as noted. Body length 1.39 mm, carapace length 0.61 mm. Sclerotized parts uniformly coloured light orange-brown, close to colour 38 ‘tawny’; legs slightly paler than body, pale orange-yellowish.

CEPHALOTHORAX. Carapace: surface of elevated portion of pars cephalica smooth, sides granulate ( Figs. 46A, E View FIGURE 46 ); posterolateral surface without spikes; posterior edge of pars cephalica with slightly stronger modified hair bases, appearing as small denticles; carapace margin with sluice restricted to posterior margin, with blunt denticles ( Fig. 46A View FIGURE 46 ); few non-marginal pars thoracica setae on carapace sides, very scattered. Eyes: tiny, especially PME and PLE ( Fig. 46A View FIGURE 46 ); posterior eye-row straight from above, procurved from front ( Figs. 46A, G View FIGURE 46 ); ALE largest, separated by their radius to diameter; ALE-PLE separated by less than ALE radius; PME separated by their radius to diameter; PLE-PME separated by less than PME radius. Sternum finely ornamented except smooth median stripe which is about half as long as sternum ( Fig. 46C View FIGURE 46 ); infracoxal grooves present; posterior margin with broad single extension, covered with few blunt denticles ( Fig. 46C View FIGURE 46 ). Pleura: surface smooth with pairs of large pits dorsally of each coxa I, II and III. Mouthparts: chelicerae promargin with row of flattened setae, distally extending into a short inwards pointing tooth-like projection (tlp) ( Fig. 46C View FIGURE 46 ).

ABDOMEN. Book lung covers (bc) large, elliptical to pear-shaped (sides slightly concave), about 3 times longer than wide ( Fig. 46H View FIGURE 46 ). Epigastric scutum dorsally with a widely oval subterminal ridge (sr) ( Fig. 46H View FIGURE 46 ); scutopedicel region with slightly swollen hair bases. Postepigastric scutum long, semicircular, with long posteriorly directed lateral apodemes (lap) ( Fig. 47D View FIGURE 47 ).

GENITALIA. Epigastric region: sperm pore situated between anterior and posterior spiracles ( Fig. 47D View FIGURE 47 ). Palp: basal segments as well as bulb and cymbium lighter in colour than rest of body; bulb rather stout ( Figs. 47 View FIGURE 47 A–B). Embolus (em) tip spatulate ( Fig. 47C View FIGURE 47 ); embolic spine (esp) with pointed tip ( Fig. 47C View FIGURE 47 ). Conductor (con) with broad tip (appearing ‘snout’-like in lateral view; Fig. 47C View FIGURE 47 ). Embolus-conductor-complex about as long as bulb.

FEMALE. As in male except as noted. Body length 1.52–1.54 mm, carapace length 0.70–0.71 mm. PME separated by less than their radius. Epigastric scutum posterolaterally with a single curved ridge (cr) ( Fig. 47E View FIGURE 47 ). Postepigastric scutum with short posteriorly directed lateral apodemes (lap) ( Fig. 47E View FIGURE 47 ).

Intraspecific variation. Body size variable (see above); one female slightly darker; number of denticles on carapace margin variable.

Distribution. NE-Sabah, MALAYSIA; all specimens collected at Kabili-Sepilok forest reserve ( Fig. 49 View FIGURE 49 ).