Gamasomorpha schmilingi Eichenberger, 2012

Eichenberger, Beata, Kranz-Baltensperger, Yvonne, Ott, Ricardo, Graber, Werner, Nentwig, Wolfgang & Kropf, Christian, 2012, Morphology of new Indian / Indonesian Gamasomorpha and Xestaspis species (Araneae: Oonopidae) 3160, Zootaxa 3160 (1), pp. 1-68 : 32-34

Gamasomorpha schmilingi Eichenberger n. sp.

( Figs. 24–26 )

Type material: Holotype male ( PBI_OON 00016046 ): West-Malaysia : Johor: Gunung Arong (2°33'12.1"N, 103°45'20.5"E), 20 m, rain forest, 15 km N of Mersing, 29 – 30 May 2004, leg. P. Schwendinger ( MHNG). Female paratype ( PBI_OON 00016047 ): West-Malaysia : Pahang: Charas Hill , 03°54'41.1"N, 103°08'50.2"E, 60 m, evergreen forest on limestone, 9–10 July 2001, leg. P. Schwendinger ( MHNG). Female paratype ( PBI_OON 00016119 ): Indonesia: Bali, Buleleng d., Danau Buyan , Pandjasari in Marchantia layer and litter, 10 October 1979, leg. P.T. Lehtinen ( ZMUT).

Etymology: The species epithet is composed from parts of the surname of the German entomologist Martin H. Schmidt-Entling, working at the University of Bern, Switzerland.

Diagnosis: Resembles G. raya n. sp. but sternum with rows of large, proximally broadened, rather fused, droplike pits between coxae I-II, II-III and III-IV (fig. 24. D) and carapace surface laterally strongly reticulate (figs. 24. E–F).

Description: Description based on 1 male and 2 females.

MALE: Body length 3.1 mm. Uniformly orange-brown colored species, legs pale orange (figs. 24. A–C). Carapace with two pairs of tiny posterolateral spikes (cps), a third, very ventral to lateral pair is indicated (fig. 24. E), posterolateral edge with a pair of pits (cpp), (fig. 24. F), lateral margin straight from dorsal view, with tiny, blunt denticles (fig. 24. F), cephalic setae u-shaped distribution in double row, originating from pits (fig. 24. E). Eye group by at least diameter of anterior lateral eyes narrower than clypeus. Sternum anterior margin with continuous transverse groove (ctg) (fig. 24. D), setae originating from small pits (fig. 24. D), posterior margin less extending than in G. asterobothros n. sp. Abdomen scuta surface strongly punctate (fig. 24. G), with needle-like setae; pedicel tube with small, dorsolateral, triangular extensions (pds), (fig. 24. G), pedicel with tiny ventral hump, booklung covers very large, ovoid, anterolateral edge unmodified (fig. 24. H); postepigastric scutum with short, posteriorly directed lateral apodemes. Legs ventral apex of tibiae III and IV with few specialized hairs (sh) with fine, plumose, curved hair tip (see fig. 13. C), ventral apex of tibia I-IV with two thickened, long, needle-like setae. No detailed description on promarginal chelicerae setae, serrula, grooves on lateral margin of sternum, trichobothria hood structure, tarsal organ and scopula between claws. Male genitalia: Similar to G. asterobothros with a long slender, lamellar embolus (em), adjacent to an embolic accessory appendage (ma) and a lamellar conductor (co) (figs. 26. A–C). Conical extension (ce) unincisive (figs. 26. A–B).

FEMALE: Body length 3.3 mm. Postepigastric scutum without posteriorly directed lateral apodemes. Female genitalia: Ventral view (fig. 26. D): Without external features. Dorsal view (figs. 26. E–F): receptaculum (re) ovoid, elongated, secretory sac (ssa) ovoid, globular appendix (gap) slightly shorter than 0.5 times the receptaculum, pore field of receptaculum (pof) distributed along globular appendix, with an anterior paddle-like sclerite (psc) and a nail-like process (na), with lateral sclerites functioning as muscle attachments (A1).

Distribution: West-Malaysia (fig. 49. A).

Figures

FIGURE 24: Gamasomorpha schmilingi n. sp. Male: A. habitus dorsal view; B. habitus ventral view; C. habitus lateral view; D. sternum ventral view; E. carapace lateral view; F. carapace dorsal view; G. abdomen anterior view; H. booklung covers lateral view. Abbreviations: ctg, continuous transverse groove; ps, carapace posterolateral spikes; psr, paired scutal ridges; pds, pedicel tube dorsolateral spikes; boc, booklung covers. Scale bars: A–C 1 mm; D–G 0.5 mm; H 0.2 mm.

FIGURE 25: Gamasomorpha schmilingi n. sp. Female: A. metatarsus II, apex; B. leg II, claw. Abbreviations: da, dorsal appendage; sc, scopula. Scale bars: A approximately 200 µm; B approximately 100 µm.

FIGURE 26: Gamasomorpha schmilingi n. sp. Male: A–B. right palp, prolateral view; C. right embolus, prolateral-ventral view. Female: D. abdomen, ventral view; E.–F. epigastric region, dorsal view. Abbreviations: ce, conical extension; em, embolus; co, conductor; ma, mesal embolic accessory appendage; psc, paddle-like sclerite; na, nail-like process; go, genital opening; gap, globular appendix; pof, pore field of receptaculum; re, receptaculum; ssa, secretory sac; A1, lateral sclerites functioning as muscle attachments. Scale bars: A–B, E–F 300 µm; C 100 µm; D 1 mm.