Aposphragisma draconigenum 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 : 30-33

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.4431899
persistent identifier	https://treatment.plazi.org/id/094F426D-FF8B-FFFD-6FC9-F7F98155FCB9
treatment provided by	Plazi
scientific name	Aposphragisma draconigenum Thoma
status	sp. nov.

Treatment

Aposphragisma draconigenum Thoma , sp. nov.

( Figs. 16–17 View FIGURE 16 View FIGURE 17 )

Type material. HOLOTYPE: male ( PBI_OON 00015669 ), Pahang ( MALAYSIA), Tioman Island , westside of Mount Kajang, 2 km E of Kampung Genting, 400 m [02°47′N 104°08′E; prov.], 2.VII.2001, leg. A. Schulz & K. Vock, deposited at MHNG GoogleMaps . PARATYPE: 1 female ( PBI_OON 00031385 ), collected together with holotype, deposited at MHNG GoogleMaps .

Etymology. The species epithet is a Latin adjective meaning ‘to be descended from a dragon’. It refers to a legend saying that Tioman Island, on which lies the type locality, represents a resting dragon princess.

Diagnosis. A. draconigenum 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 blunt denticles, sluice (slu) reaching from posterior margin to level of coxa I ( Fig. 16D View FIGURE 16 ); epigastric scutum dorsally with a widely oval subterminal ridge (sr) ( Fig. 16G View FIGURE 16 ), sides posterolaterally with a pair of single curved ridges (cr) (in female only; Fig. 17B View FIGURE 17 ) and a distally widened spinneret scutum (in male only; Fig. 16H View FIGURE 16 ). It highly resembles allopatric A. confluens sp. nov. but can be distinguished among others by smaller posterior eyes, broader posterior extension of the sternum and smaller body size.

Description. Description based on 1 male and 1 female.

MALE. With the characters of the genus except as noted. Body length 1.08 mm, carapace length 0.52 mm. Sclerotized parts uniformly coloured yellow-brown approaching colour 121C ‘mikado brown’; legs slightly paler than body. Habitus: Figs. 16 View FIGURE 16 A–C.

CEPHALOTHORAX. Carapace: surface of elevated portion of pars cephalica smooth, sides finely reticulate ( Figs. 16 View FIGURE 16 C–D); 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. 16D View FIGURE 16 ); non-marginal pars thoracica setae present but sparse and scattered. Eyes: posterior eye-row straight 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 tiny and circular, separated by less than PME radius. Sternum completely finely ornamented ( Figs. 16 View FIGURE 16 E–F). Pleura: surface smooth with pairs of large pits dorsally of each coxa I, II and III. Mouthparts: chelicerae promargin distally extending into a short inwards pointing tooth-like projection (tlp) ( Fig. 16E View FIGURE 16 ); anterior face of paturon in lateral view subbasally slightly indented ( Fig. 16C View FIGURE 16 ).

ABDOMEN. Book lung covers (bc) large, elongated elliptical, with parallel sides, about 3 times longer than wide ( Fig. 16G View FIGURE 16 ). Epigastric scutum dorsally with widely oval subterminal ridge (sr) ( Fig. 16G View FIGURE 16 ). Postepigastric scutum long, semicircular, with long posteriorly directed lateral apodemes (lap) ( Fig. 17A View FIGURE 17 ). Pedicel tube finely ribbed. Spinneret scutum distally widened ( Fig. 16H View FIGURE 16 ).

GENITALIA. Epigastric region: sperm pore situated between anterior and posterior spiracles ( Fig. 17A View FIGURE 17 ). Palp: basal segments as well as bulb and cymbium lighter in colour than rest of body; bulb stout ( Figs. 17 View FIGURE 17 C–D). Embolus (em) tip elongated and spatulate ( Figs. 17 View FIGURE 17 C–D); embolic spine not observed. Conductor (con) with slender tip ( Figs. 17 View FIGURE 17 C–D). Embolus-conductor-complex slightly shorter than bulb.

FEMALE. Body length 1.19 mm, carapace length 0.54 mm. As in male except as noted. Lighter coloured than male, more yellowish, close to colour 123B ‘clay colour’. Proximal part of chelicerae posterior margin of inner surface upfolded to a ridge, covering about 2/3 of margin-length, distally ending in tooth-like projection (not possible to be examined in male). Epigastric scutum posterolaterally with a pair of single curved ridges (cr) ( Fig. 17B View FIGURE 17 ). Postepigastric scutum with short posteriorly directed lateral apodemes (lap) ( Fig. 17B View FIGURE 17 ). Spinneret scutum distally not widened ( Fig. 17B View FIGURE 17 ).

Intraspecific variation. Body size variable (see above). Body colouration variable (see above).

Distribution. Tioman Island, MALAYSIA ( Fig. 49 View FIGURE 49 ).