Aposphragisma hausammannae 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 : 33-35

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.4431905
persistent identifier	https://treatment.plazi.org/id/094F426D-FFB6-FFFF-6FC9-F1078741F877
treatment provided by	Plazi
scientific name	Aposphragisma hausammannae Thoma
status	sp. nov.

Treatment

Aposphragisma hausammannae Thoma View in CoL , sp. nov.

( Figs. 18–19 View FIGURE 18 View FIGURE 19 )

Type material. HOLOTYPE: male ( PBI_OON 00012212 ), Dong Nai Province ( VIETNAM), Cat Tien National Park, 25 km NW of Tan Phu, 130 m [11°25′22.3′′N 107°25′42.5′′E; prov.], 26.–29.VIII.2003, evergreen rain forest between HQ and Mr. Dong redwood tree, leg. P. Schwendinger, deposited at MHNG GoogleMaps . PARATYPES: 2 females ( PBI_OON 00015468 ) collected together with male holotype, deposited at MHNG .

Etymology. The species epithet is dedicated to Brigitt Hausammann (*1981), a Swiss environmental scientist and globetrotter who has spent several months conducting research in Vietnam. Her philosophy of life and friendship has not left the first author’s own life untouched.

Diagnosis. A. hausammannae 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 ( Figs. 18A, C View FIGURE 18 ); carapace margin with blunt denticles, sluice reaching from posterior margin to level of coxa I ( Fig. 18A View FIGURE 18 ); epigastric scutum in females posterolaterally with a row of longitudinal ridges. It closely resembles allopatric A. retifer sp. nov. but body length is much shorter, posterior eye row straight from above (recurved in A. retifer sp. nov.) and ALE-ALE interdistance is greater. The new species also shows structural differences of the male palp if compared to A. retifer sp. nov.

Description. Description based on 1 male and 2 females.

MALE. With the characters of the genus except as noted. Body length 1.30 mm, carapace length: 0.61 mm. Carapace uniformly coloured honey-yellow, very close to colour 118 ‘warm buff’, abdomen uniformly coloured brown-yellowish, very close to colour 123 ‘raw umber’; legs paler than body, yellowish. Habitus: Figs. 18 View FIGURE 18 A–C.

CEPHALOTHORAX. Carapace: surface of elevated portion of pars cephalica smooth, sides strongly reticulate, partly interrupted by small smooth areas ( Figs. 18D, G View FIGURE 18 ); 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. 18D View FIGURE 18 ); very few non-marginal pars thoracica setae. 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 separated by less than PME radius. Sternum finely ornamented except smooth median stripe ( Figs. 18 View FIGURE 18 E–F); posterior margin with broad single extension, covered with blunt denticles ( Figs. 18 View FIGURE 18 E–F). Mouthparts: chelicerae posterior margin of inner surface proximally modified to a ridge, covering about 2/3 of margin length; promargin with row of flattened setae, distally extending into a short inwards pointing tooth-like projection (tlp) ( Fig. 18E View FIGURE 18 ); posterior face with a pair of spatulate setae, more than half as long as fang; anterior face of paturon in lateral view subbasally slightly indented (ind) ( Fig. 18G View FIGURE 18 ).

ABDOMEN. Book lung covers (bc) large, elliptical or rather pear-shaped (sides slightly convex), about 4 times longer than wide ( Fig. 18H View FIGURE 18 ). Epigastric scutum dorsally with widely oval subterminal ridge (sr) ( Fig. 18H View FIGURE 18 ). Postepigastric scutum long, semicircular, with short posteriorly directed lateral apodemes (lap) ( Fig. 19A View FIGURE 19 ).

GENITALIA. Epigastric region: sperm pore situated between anterior and posterior spiracles ( Fig. 19A View FIGURE 19 ). Palp: basal segments lighter in colour than rest of body, yellowish; bulb rather slender ( Figs. 19 View FIGURE 19 C–D). Embolus (em) tip spatulate ( Figs. 19 View FIGURE 19 C–D); embolic spine with fringed tip (esp) ( Fig. 19D View FIGURE 19 ). Conductor with slender tip (con) ( Figs. 19 View FIGURE 19 C–D). Embolus-conductor-complex slightly shorter than bulb.

FEMALE. As in male except as noted. Body length 1.50–1.52 mm, carapace length 0.64 mm. Carapace colour slightly more orange-brownish, towards colour 136 ‘raw sienna’, abdomen slightly browner, towards colour 139 ‘true cinnamon’. Epigastric scutum posterolaterally with a row of longitudinal ridges (similar as in A. helvetorium sp. nov.).

Intraspecific variation. Body size variable (see above); colour shows slight variation (see above); carapace margin with variable number of denticles.

Distribution. Dong Nai Province, VIETNAM; all specimens collected at the type location ( Fig. 49 View FIGURE 49 ).