Aposphragisma confluens 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 : 25-27

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.4431887
persistent identifier	https://treatment.plazi.org/id/094F426D-FF8E-FFC7-6FC9-F44A814DFD48
treatment provided by	Plazi
scientific name	Aposphragisma confluens Thoma
status	sp. nov.

Treatment

Aposphragisma confluens Thoma View in CoL , sp. nov.

( Fig. 13 View FIGURE 13 )

Type material. HOLOTYPE: female ( PBI_OON 00015238 ), Sarawak ( MALAYSIA), E of Kapit , Tr. Narwin at confluence of Suan Oyen River and Mujong River , 150 m [02°02′N 113°01′E; inf.], 19.V.1994, secondary mixed dipterocarp forest along ridge, sifting of vegetational debris, leg. I. Löbl & D. Burckhardt, deposited at MHNG. GoogleMaps

Etymology. The species epithet is a noun in apposition meaning ‘confluence’ in Latin. It refers to the type locality at the confluence of Suan Oyen River and Mujong River on Borneo.

Diagnosis. A. confluens sp. nov. is only known from one female and does not belong to the stripe clade and thus shows a completely ornamented sternum. It can be distinguished from other species with a completely ornamented sternum by the combination of the following traits: carapace margin with blunt denticles ( Fig. 13D View FIGURE 13 ), sluice (slu) reaching from posterior margin to level of coxa I ( Fig. 13C View FIGURE 13 ), epigastric scutum dorsally without a widely oval subterminal ridge and sides posterolaterally with a single curved ridge (cr) ( Fig. 13H View FIGURE 13 ). It highly resembles allopatric A. draconigenum but can be distinguished among others by the larger posterior eyes and the larger body size.

Description. Description based on 1 female.

FEMALE. With the characters of the genus except as noted. Body length 1.65 mm, carapace length 0.74 mm. Sclerotized parts uniformly coloured yellow-brown, very close to colour 123A ‘cinnamon’; legs only slightly paler than body. Habitus: Figs. 13 View FIGURE 13 A–B.

CEPHALOTHORAX. Carapace: surface of elevated portion of pars cephalica smooth, sides finely reticulate ( Figs. 13C, E View FIGURE 13 ); posterolateral surface without spikes; posterior edge of pars cephalica with slightly stronger modified hair bases, appearing as small denticles; carapace margin with sluice (slu) reaching from posterior margin to level of coxa I, with blunt denticles ( Fig. 13C View FIGURE 13 ); non-marginal pars thoracica setae scattered. Eyes: posterior eye-row straight or slightly procurved from above, procurved from front ( Figs. 13C, F View FIGURE 13 ); ALE largest, separated by less than their radius; ALE-PLE separated by less than ALE radius; PME touching for less than half their length; PLE-PME separated by less than PME radius. Sternum completely finely ornamented ( Fig. 13D View FIGURE 13 ). Pleura: surface smooth with pairs of large pits dorsally of each coxa I, II and III ( Fig. 13E View FIGURE 13 ).

ABDOMEN. Book lung covers (bc) large, elongated elliptical to slightly pear-shaped (i.e. sides concave), about 4 times longer than wide ( Fig. 13G View FIGURE 13 ). Epigastric scutum dorsally without widely oval subterminal ridge ( Fig. 13G View FIGURE 13 ), posterolaterally with a single curved ridge (cr) ( Fig. 13H View FIGURE 13 ). Postepigastric scutum long, semicircular, with short posteriorly directed lateral apodemes (lap) ( Fig. 13H View FIGURE 13 ).

Distribution. Central Sarawak, MALAYSIA ( Fig. 49 View FIGURE 49 ).