Teutamus apiculatus, 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 : 1705-1707

Teutamus apiculatus sp. nov.

( Figures 3 D,F, 8 A–F)

Diagnosis

Males of T. apiculatus sp. nov. closely resemble those of T. fertilis but can be distinguished by the peculiar shape of conductor ( Figure 8 A,D); females can be recognized by the zigzagged insemination ducts and the apical glandular pore on the spermathecae ( Figures 3 D, 8 F).

Type material

Holotype. ♂, Malaysia: Pahang State: Cameron Highlands, Orang Asil, village near Mt Perdah, 1575 m, sifting leaf litter in shallow ravine , 2–14 May 2009, leg. P. Banar ( MHNG, MAL-PB5) .

Paratypes. Data as holotype, 1♂, 2♀ ( MHNG, MAL-PB5) . Fraser Hill, south side , 1300 m, 26 August 2004, 2♀ ( MHNG, MAL-04 / 10) .

Etymology

The specific epithet is a nominative form of an adjective (Latin: apiculatus , - a, um), referring to the large glandular pore locating on the apex of spermathecae.

Description

Male (holotype). Total length 5.06; prosoma 2.42 long, 1.62 wide; opisthosoma 2.64 long, 1.30 wide. Leg formula: 1423; I 11.06 (2.52, 0.98, 3.48, 2.42, 1.66); II 8.76 (2.02, 0.98, 2.72, 1.88, 1.16); III 7.42 (1.66, 0.92, 2.16, 1.64, 1.04); IV 10.78 (2.62, 1.04, 3.06, 2.62, 1.44). Carapace reddish brown; submarginal lobes triangular, their apices bluntly pointed. Sternum reddish brown. Legs hairless, orange-brown. Opisthosoma elongate-ovoid. Dorsal scutum covering two-thirds of length of opisthosoma.

Palp ( Figure 8 A–C): RTA triangular, strongly excavated medially, its apex blunt, anterior margin with colourless and transparent lamina. DTA short and stout. Tegulum ovoid, slightly excavated on baso-retrolateral side. Conductor parallel-sided, abruptly narrowing towards apex. Embolic base clearly visible.

Female (paratype, MHNG, MAL-PB5). Total length 5.02; prosoma 2.38 long, 1.62 wide; opisthosoma 2.64 long, 1.30 wide. Leg formula: 1423; I 11.08 (2.48, 1.04, 3.52, 2.38, 1.66); II 8.78 (2.02, 1.02, 2.68, 1.88, 1.18); III 7.40 (1.68, 0.92, 2.14, 1.62, 1.04); IV 10.66 (2.58, 1.04, 3.06, 2.60, 1.38). General appearance as in male except submarginal lobes on carapace broader at base, their apices blunt; dorsum of opisthosoma pale, posteriorly with a series of faint chevrons.

Genitalia ( Figures 3 D,F, 8 E,F): Epigyne with shallow median depression situated between crescent-shaped copulatory orifices. Insemination ducts zigzagged, connected to anterior lateral portion of spermathecae on ventral surface. Spermathecae elongate-ovoid, widest subapically, glandular pore situated apically. Fertilization ducts lanceolated.

Distribution

Known only from the type localities on the 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 8. Teutamus apiculatus sp. nov., male holotype (A – D), female paratype (E, F). (A) Male palp, ventral, (B) prolateral (B) and (C) retrolateral; (D) conductor, prolateral; (E) epigastric region, ventral; (F) internal genitalia, dorsal. Scale bars 0. 2 5 mm.