Teutamus globularis, Dankittipakul, Pakawin, Tavano, Maria & Singtripop, Tippawan, 2012

Dankittipakul, Pakawin, Tavano, Maria & Singtripop, Tippawan, 2012, Seventeen new species of the spider genus Teutamus Thorell, 1890 from Southeast Asia (Araneae: Liocranidae), Journal of Natural History 46, pp. 1689-1730 : 1713-1715

Teutamus globularis sp. nov.

( Figures 3 C, 12 A–F)

Diagnosis

Males of T. globularis sp. nov. closely resemble those of T. rothorum in having a relatively large conductor but can be easily distinguished by the globular shape of the tegulum ( Figure 12 A–C); females also possess the large, oval epigynal atria but can be by the different shapes of insemination ducts and spermathecae ( Figures 3 C, 12 D–F).

Type material

Holotype. ♂, Malaysia: Pahang State: Charas Hill, 3 km north of Pancing 60 m, evergreen rainforest on limestone , 9 July 2001, leg. P.J. Schwendinger ( MHNG, SIM-01 / 12) .

Paratypes. Data as holotype, 2♂, 3♀ ( MHNG, SIM-01 / 12) ; from type locality, 60 m, rain forest remnants at foot of limestone hill , 3 June 2004, leg. P.J. Schwendinger, 3♂ ( MHNG, MAL-04 / 08) .

Etymology

The specific epithet is derived from Latin ( globularis , globulare = globular), and refers to the shape of the tegulum of male palp.

Description

Male (holotype). Total length 4.98; prosoma 2.36 long, 1.58 wide; opisthosoma 2.62 long, 1.30 wide. Leg formula: 1423; I 10.64 (2.48, 0.92, 3.26, 2.32, 1.66); II 8.54 (2.06, 0.90, 2.58, 1.92, 1.08); III 7.06 (1.64, 0.92, 2.08, 1.42, 1.00); IV 10.38 (2.56, 0.92, 3.06, 2.56, 1.28). Spination: Leg I: Femora p1-1-1; tibiae p9 r9; metatarsi p5 r5. Leg II: Tibiae p9 r8; metatarsi p4 r4. Carapace reddish brown; submarginal lobes triangular, their apices globular. Sternum orange-brown. Legs hirsute, uniform in colour, orangebrown. Opisthosoma elongate-ovoid. Dorsal scutum covering almost entire length of opisthosoma.

Palp ( Figure 12 A–C): RTA digitiform, strongly excavated anteriorly, its apex blunt, anterior margin with colourless and transparent lamina. DTA short and stout, weakly sclerotized. Tegulum more or less spherical, slightly protruding apico-retrolaterally. Conductor conical, elongated, gradually narrowing apically, its apex sharply pointed. Embolic base almost indistinct.

Female (paratype, MHNG, SIM-01/12). Total length 5.58; prosoma 2.46 long, 1.50 wide; opisthosoma 3.12 long, 1.48 wide. Leg formula: 1423; I 11.62 (2.60, 1.00, 3.82, 2.54, 1.66); II 9.26 (2.08, 1.00, 3.02, 1.84, 1.32); III 7.92 (1.68, 0.90, 2.26, 1.88, 1.20); IV 11.32 (2.60, 1.00, 3.24, 2.86, 1.62). Spination: Leg I: Femora p1-1-1; tibiae p8 r8; metatarsi p5 r5. Leg II: Tibiae p8 r8; metatarsi p4 r4. General appearance as in male; submarginal lobes on carapace blunt, slightly elevated; dorsum pale; venter pale.

Genitalia ( Figure 12 D–F). Epigyne with large, elongate-oval epigynal atria filled with dark hardening secretion. Copulatory orifices situated laterally on epigynal atria. Insemination ducts descending obliquely then moving transversely, connected to anterior portion of spermathecae. Spermathecae reniform, anterior portion distinctly narrowed. Fertilization ducts lanceolated.

Distribution

Known only from the type locality on the west coast of Malay Peninsula.

Figures

Figure 3. Teutamus serrulatus, female paratype (A, B, G). Teutamus globularis, female paratype (C). Teutamus apiculatus, female paratype (D, F). Teutamus orthogonus, female paratype (E). Teutamus leptothecus, female holotype (H). (A – C) Epigastric region, ventral; (D) anterior portion of spermatheca showing glandular pore and mucus plug; (E) secretory glands; (F) mucus plug; (G) secretory ampulla surrounded by epithelial gland cells (arrowed); (H) gland ductules on spermathecal wall. Abbreviations: MP, mucus plug; PS, post-epigastric scutum.

Figure 12. Teutamus globularis sp. nov., male holotype (A – C), female paratype (D – F). (A) Male palp, ventral, (B) prolateral and (C) retrolateral; (D) epigastric region, ventral; (E) internal genitalia, ventral, (F) dorsal. Scale bars 0. 2 5 mm.