Aposphragisma nocturnum 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 : 54-57

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.4431925
persistent identifier	https://treatment.plazi.org/id/094F426D-FFA3-FFE5-6FC9-F75C80A9FEC9
treatment provided by	Plazi
scientific name	Aposphragisma nocturnum Thoma
status	sp. nov.

Treatment

Aposphragisma nocturnum Thoma View in CoL , sp. nov.

( Figs. 34–35 View FIGURE 34 View FIGURE 35 )

Type material. HOLOTYPE: male ( PBI_OON 00015995 ), Kalimantan ( INDONESIA), Kutal District , Lempake Tanah Merah [00°30′S 117°09′E; inf.], 24.X.1979, rain forest, leg. P. T. Lehtinen, deposited at MZT GoogleMaps . PARATYPES: 1 male ( PBI_OON 00032179 ), Kalimantan ( INDONESIA), Berau District , 1 km off road Tanjungredeb to Tanjungselor, c. 45 km N of Tanjungredeb, 190 m [02°29′33′′N 117°28′46′′E; prov.], primary forest, 29.IX./ 3.X.2008, leg. P. Schwendinger, deposited at MHNG GoogleMaps .

Etymology. The species epithet is a Latin adjective meaning nocturnal. It refers to the many hours the first author spent working at night on the first draft of the present paper during the final stage of his master thesis.

Diagnosis. A. nocturnum sp. nov. 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 very small blunt denticles, sluice reaching from posterior margin to level of coxa I ( Fig. 34D View FIGURE 34 ); cheliceral promargin distally without toothlike projection; epigastric scutum dorsally without a widely oval subterminal ridge. ( Fig. 34G View FIGURE 34 ). The new species resembles A. scimitar sp. nov. but can easily be distinguished by the presence of denticles on the carapace margin (absent in A. scimitar sp. nov.) and by the shape of the postepigastric lateral apodemes ( Fig. 34H View FIGURE 34 , cf fig. 44H).

Description. Description based on 2 males.

MALE. With the characters of the genus except as noted. Body length 2.15–2.23 mm (n=2), carapace length 0.98–1.00 mm (n=2). Sclerotized parts uniformly coloured orange-brown, approaching colour 240 ‘kingfisher rufous’; legs only very slightly paler than body. Habitus: Figs. 34 View FIGURE 34 A–C.

CEPHALOTHORAX. Carapace: surface of elevated portion of pars cephalica very slightly wrinkled, sides finely reticulate ( Figs. 34D, F View FIGURE 34 ); posterolateral surface without spikes; posterior edge of pars cephalica with slightly stronger modified hair bases, appearing as very small denticles; carapace margin with narrow sluice reaching from posterior margin to level of coxa I, with small blunt denticles ( Fig. 34D View FIGURE 34 ); non-marginal pars thoracica seate few and very scattered. Eyes: posterior eye-row straight from above, procurved from front; ALE well developed; PLE and PME tiny ( Fig. 34D View FIGURE 34 ); ALE and PLE oval; PME asymmetric, roundish to ovoid; ALE separated by their radius to diameter; 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. 34E View FIGURE 34 ); posterior margin with broad single extension, covered with blunt denticles ( Fig. 34E View FIGURE 34 ). Pleura: surface smooth with pairs of large pits dorsally of each coxa I, II and III ( Fig. 34F View FIGURE 34 ). Mouthparts: chelicerae paturon anterior face in lateral view subbasaly with strong indention (ind) ( Fig. 34F View FIGURE 34 ); promargin with row of flattened setae, distally without a short inwards pointing toothlike projection.

ABDOMEN. Book lung covers (bc) large, ovoid (sides slightly convex; fig. 34G). Epigastric scutum dorsally without widely oval subterminal ridge ( Fig. 34G View FIGURE 34 ); scuto-pedicel region with slightly swollen hair bases. Postepigastric scutum long, semicircular, with long posteriorly directed lateral apodemes (lap) ( Fig. 34H View FIGURE 34 ).

GENITALIA. Epigastric region: sperm pore situated between anterior and posterior spiracles ( Fig. 34H View FIGURE 34 ). Palp: basal segments as well as bulb and cymbium slightly lighter in colour than rest of body; bulb stout, only slightly longer than cymbium, anterodorsally with very faint conical bulge (cb) ( Figs. 35 View FIGURE 35 A–B). Embolus (em) subdistally narrowed, dorsally without comb ( Figs. 35 View FIGURE 35 A–B); embolus tip widened and pennant-like ( Figs. 35 View FIGURE 35 A–B); embolic spine (esp) with pointed tip ( Fig. 35C View FIGURE 35 ). Conductor (con) with slender tip ( Figs. 35 View FIGURE 35 A–B). Embolus-conductorcomplex about as long as bulb.