Aposphragisma menzi 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 : 46-50

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.4431917

persistent identifier

https://treatment.plazi.org/id/094F426D-FFBB-FFEC-6FC9-F5658145F8CE

treatment provided by

Plazi

scientific name

Aposphragisma menzi Thoma
status

sp. nov.

Aposphragisma menzi Thoma View in CoL , sp. nov.

( Figs. 28–31 View FIGURE 28 View FIGURE 29 View FIGURE 30 View FIGURE 31 )

Type material. HOLOTYPE: male ( PBI_OON 00031389 ), Kalimantan ( INDONESIA), Berau District , near Kampung Suaran, c. 40 km S of Tanjungredeb, 50 m [01°59′42′′N 117°36′03′′E; prov.], 1.X.2008, primary forest on limestone, leg. P. Schwendinger, deposited at MHNG GoogleMaps . PARATYPES: 2 males & 1 female ( PBI_OON 00031380 ), collected together with male holotype, deposited at MHNG ; 1 male ( PBI_OON 00031381 ), Kalimantan( INDONESIA), Berau District , Hutan Wisata Sei Tangap, c. 8 km W of Tanjungredeb, 30 m [02°08′04′′N 117°24′39′′E; prov.], 2.X.2008, primary forest, leg. P. Schwendinger, deposited at AMNH; GoogleMaps 1 male & 1 female ( PBI_OON 00031388 ), collected with paratype PBI_OON 00031381, deposited at MHNG; GoogleMaps 1 female ( PBI_OON 00031390 ; abdomen used for examination of internal genitalia), 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.], 29.IX./ 3.X.2008, primary forest, leg. P. Schwendinger, deposited at MHNG; GoogleMaps 2 males & 1 female ( PBI_OON 00031391 ), collected together with paratype (PBI_OON 00031390), deposited at NMBE; GoogleMaps 1 male ( PBI_OON 00031403 ), collected together with paratype (PBI_OON 00031390), deposited at MHNG .

Non-type material. 1 male ( PBI_OON 00031382 ; used for SEM), collected together with paratype (PBI_OON 00031390), deposited at MHNG .

Etymology. The species epithet is dedicated to Dr. Myles H. M. Menz (*1982), an Australian zoologist, botanist and conservation biologist whose friendship and scientific work is highly admired by the first author.

Diagnosis. A. menzi 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 (slu) restricted to posterior margin ( Fig. 28D View FIGURE 28 ); epigastric scutum in females posterolaterally with a row of longitudinal ridges (lr) ( Fig. 31F View FIGURE 31 ). It is the only species of the stripe-clade showing a completely smooth carapace surface ( Figs. 28D, H View FIGURE 28 ).

Description. Description based on 9 males and 4 females.

MALE. With the characters of the genus except as noted. Body length 1.27–1.38 mm (n=9), carapace length 0.61–0.65 mm (n=9). Sclerotized parts uniformly coloured orange-brown, close to colour 340 ‘robin rufous’; legs slightly paler than body, pale orange. Habitus: Figs. 28 View FIGURE 28 A–C.

CEPHALOTHORAX. Carapace: entire surface smooth ( Figs. 28 View FIGURE 28 A–D, H); posterolateral surface without spikes; posterior edge of pars cephalica with slightly stronger modified hair bases, appearing as small denticles ( Fig. 28D View FIGURE 28 ); carapace margin with sluice (slu) restricted to posterior margin, with blunt denticles ( Fig. 28D View FIGURE 28 ). 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 coarsely ornamented except rather broad smooth median stripe ( Figs. 28 View FIGURE 28 E–G); posterior margin with broad single extension, covered with blunt denticles ( Figs. 28 View FIGURE 28 E–G); setae appearing slightly plumose at SEM level ( Fig. 29A View FIGURE 29 ). Pleura: surface smooth with pairs of large pits dorsally of each coxa I, II and III (as in A. brunomanseri sp. nov., cf fig. 10B). Mouthparts: chelicerae posterior margin of inner surface proximally modified to a ridge with median slit, covering about 2/3 of margin length, distally ending in a rounded ‘knob’ ( Fig. 29D View FIGURE 29 ); promargin with row of flattened setae (rfs) in combination with plumose setae ( Figs. 29 View FIGURE 29 D–E), distally extending into a short inwards pointing tooth-like projection (tlp) ( Figs. 28H View FIGURE 28 , 29D View FIGURE 29 ); anterior face of paturon in lateral view subbasally with slight indention (ind) ( Fig. 28C View FIGURE 28 ). Endites distally with brush of special wing-like setae (ws) on inner margin ( Figs. 29 View FIGURE 29 B–C), outer margin subdistally with a pair of rather long inward bent plumose setae (ebs) ( Fig. 29B View FIGURE 29 ).

ABDOMEN. Book lung covers (bc) large, elliptical to dumbbell or pear-shaped (sides slightly concave), about 3–4 times longer than wide ( Fig. 29F View FIGURE 29 ). Epigastric scutum dorsally with widely oval subterminal ridge (sr) ( Fig. 29F View FIGURE 29 ). Postepigastric scutum long, semicircular, with long posteriorly directed lateral apodemes (lap) ( Fig. 29G View FIGURE 29 ). Setae appearing slightly plumose at SEM level.

GENITALIA. Epigastric region: sperm pore situated between anterior and posterior spiracles ( Fig. 29G View FIGURE 29 ). Palp: basal segments lighter in colour than rest of body; bulb rather stout, tapering apically ( Figs. 31 View FIGURE 31 A–D). Embolus (em) tip spatulate ( Figs. 31C, E View FIGURE 31 ); embolic spine (esp) with fringed tip ( Fig. 31E View FIGURE 31 ). Conductor (con) with slender tip ( Figs. 31C, E View FIGURE 31 ). Embolus-conductor-complex about half as long as bulb.

FEMALE. As in male except as noted. Body length 1.47–1.52 mm (n=4), carapace length 0.66–0.67 mm (n=4). Epigastric scutum posterolaterally with a row of longitudinal ridges (lr) ( Fig. 31F View FIGURE 31 ).

GENITALIA. Dorsal view ( Figs. 31 View FIGURE 31 F–G): receptaculum (re) triangular shaped with rounded posterior edge, laterally framed by long rectangular sclerites i.e. lateral apodemes (lap); apodemes distally weakly sclerotized and thus looking rather short in ventral view at stereomicroscope level; globular appendix (gap) lying dorsally of receptaculum about half as long as receptaculum; lateral and median part of receptaculum dorsally covered with papillae (pap); a transverse sclerite (ts) anteriorly to the receptaculum not observed, maybe lost during preparation.

Intraspecific variation. Body size variable (see above). Three males show honey-yellow colouration. Number of denticles on carapace margin varies. Extension of smooth median stripe on sternum slightly variable but never less than about 2/3 of sternum length.

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

NMBE

Switzerland, Bern, Naturhistorische Museums

MHNG

Museum d'Histoire Naturelle

AMNH

American Museum of Natural History

NMBE

Naturhistorisches Museum der Burgergemeinde Bern

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Oonopidae

Genus

Aposphragisma

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF