Aposphragisma borgulai Thoma 2014, sp. nov.
Creators: name: THOMA, MARCO
name: KRANZ-BALTENSPERGER, YVONNE
name: KROPF, CHRISTIAN
name: GRABER, WERNER
name: NENTWIG, WOLFGANG
name: FRICK, HOLGER
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Oonopidae
Aposphragisma
Aposphragisma borgulai

description: Aposphragisma borgulai Thoma, sp. nov.
(Figs. 5–8)
Type material. HOLOTYPE: male (PBI_OON 00031400), Sumatra (INDONESIA), Jambi W of Mt. Tujuh Lake, 1400 m [01°42′S 101°23′E; inf.], 14.XI.1989, leg. D. Agosti, D. Burckhardt & I. Löbl, deposited at MHNG. PARATYPES: 1 male (PBI_OON 00012111), collected together with holotype, deposited at MHNG; 1 male (PBI_OON 00012126), Sumatra (INDONESIA), West Sumatra Province, Palopo Nat. Res., N of Bukittinggi, 900 m [0°18′20′′S 100°22′09′′E; inf.], 18.–20.XI.1989, leg. I. Löbl, D. Agosti & D. Burckhardt, deposited at MHNG; 1 male & 1 female (PBI_OON 00012402), Sumatra (INDONESIA), West Sumatra province, old secondary forest above Taman Hutan Raya Bung Hatta, near road Padang to Lubuksulasih, 1100 m [0°56′45′′S 100°32′37′′E; prov.], 29./ 30.V.2006, leg. P. Schwendinger, deposited at NMBE; 1 female (PBI_OON 00012407), Sumatra (INDONESIA), West Sumatra Province, old secondary forest above Harau Canyon, N of Payakumbuh, 750 m [0°05′46′′S 100°39′58′′E; prov.], 7.VI.2006, leg. P. Schwendinger, deposited at MHNG; 1 female (PBI_OON 00012432; abdomen used for examination of internal genitalia), Sumatra (INDONESIA), West Sumatra Province, Rimbo Panti Nature Reserve, c. 30 km N of Lubuksikaping, 300–400 m [0°20′46′′N 100°04′09′′E; prov.], 11./ 13.VI.2006, leg. P. Schwendinger, deposited at MHNG; 1 female (PBI_OON 00012439), Sumatra (INDONESIA), West Sumatra Province, Anai Valley, 6 km S of Padangpanjang, 500 m [0°28′38′′S 100°21′14′′E; prov.], 1.VI.2006, primary forest, leg. P. Schwendinger, deposited at MHNG.
Non-type material. 1 male (PBI_OON 00031401; used for SEM), collected together with paratypes (PBI_OON 00012402), deposited at NMBE.
Etymology. The species epithet is dedicated to Adrian Borgula (*1959), a Swiss biologist and politician who had an important influence on the development of the first author’s natural history skills since they first met in August 1993.
Diagnosis. A. borgulai 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 (Fig. 5D); carapace margin with blunt denticles, sluice (slu) restricted to posterior margin (Figs. 5 D–E); epigastric scutum in females posterolaterally with a row of longitudinal ridges (lr) (Fig. 8F). It closely resembles A. baltenspergerae (see there for differences).
Description. Description based on 5 males and 4 females.
MALE. With the characters of the genus except as noted. Body length 1.73–1.86 mm (n=4), carapace length 0.79–0.84 mm (n=4). Sclerotized parts uniformly coloured orange-brown, very close to colour 36 ‘amber’; legs slightly paler than body. Habitus: Figs. 5 A–C.
CEPHALOTHORAX. Carapace: surface of elevated portion of pars cephalica smooth, sides strongly reticulate, partly interrupted by small smooth areas (Fig. 5D); posterolateral surface without spikes; posterior edge of pars cephalica with slightly stronger modified hair bases, appearing as small denticles (pmh) (Fig. 5D); carapace margin with sluice (slu) restricted to posterior margin, with blunt denticles (den) (Fig. 6A). Eyes: posterior eye-row straight from above, procurved from front (Figs. 5A, H); ALE largest, separated by their radius to diameter; ALEPLE 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 smooth median stripe (sms) (Figs. 5 E–G, 6B); posterior margin with broad single extension, covered with blunt denticles (Fig. 5F); setae appearing plumose at SEM level (Fig. 6B). Pleura surface smooth with scattered pits. Mouthparts: chelicerae posterior margin of inner surface proximally modified to a ridge with faint median slit (sli), covering about 2/3 of margin length, distally ending in small pointed bulge (Fig. 6C); promargin with a row of flattened setae (rfs) with serrated lateral margin in combination with plumose setae (Fig. 6E), distally extending into a short inwards pointing tooth-like projection (tlp) (Figs. 6 C–D), base of tooth-like projection posteriorly with a large plumose seta (lps) (about as long as fang; Figs. 6 D–E); anterior face of paturon in lateral view subbasally slightly indented. Endites distally with brush of special setae with broad and deeply fringed tips on inner margin, outer margin subdistally with a pair of rather long, plumose setae bent inwards.
ABDOMEN. Book lung covers (bc) large, elliptical to dumbbell or pear-shaped (i.e. sides concave), about 3 times longer than wide (Fig. 7A). Epigastric scutum dorsally with a widely oval subterminal ridge (sr) (Fig. 7A); scuto-pedicel region with slightly ‘swollen’ hair bases. Postepigastric scutum long, semicircular, with long posteriorly directed lateral apodemes (lap) (Fig. 6G). Setae appearing slightly plumose at SEM level (Fig. 6F).
GENITALIA. Epigastric region: sperm pore (sp) situated between anterior and posterior spiracles (Fig. 6F). Palp: basal segments as well as bulb and cymbium lighter in colour than rest of body; bulb stout (Figs. 8 A–B). Embolus (em) medially with longitudinal ridges (lri) on prolateral surface (Fig. 8D); embolus tip spatulate and twisted (Figs. 8C, E); embolic spine (esp) with fringed tip (Fig. 8E). Conductor (con) with broad tip, distally with lateral comb (on stereomicroscope level tip appears ‘snout’-like in lateral view; Fig. 8C). Embolus-conductor-complex about as long as bulb.
FEMALE. As in male except as noted. Body length 1.72–2.06 mm (n=4), carapace length 0.76–0.88 mm (n=4). Epigastric scutum posterolaterally with a row of longitudinal ridges (lr) (Fig. 8F).
GENITALIA. Dorsal view (Figs. 8 F–G): receptaculum (re) oval, containing an oval sac-like structure (sa), laterally framed by long, posteriorly pointed sclerites (apodemes; lap); globular appendix (gap) lying dorsally of receptaculum about 1/3 as long as receptaculum; posterior part of receptaculum dorsally covered with papillae (pap); a transverse sclerite (tsc) lies anteriorly to the receptaculum and bears medially a nail-like structure (na).
Intraspecific variation. Body size variable (see above); colour shows very slight variation; one rather small female shows irregular posterior eye row; number of denticles on carapace margin variable (around 20 each side); one female with reduced smooth median stripe on sternum.
Distribution. W-Sumatra, INDONESIA (Fig. 49).
description: Published as part of 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, pp. 1-86 in Zootaxa 3798 (1) on pages 15-20, DOI: 10.11646/zootaxa.3798.1.1, http://zenodo.org/record/4431865