Teutamus hirtellus, 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 : 1718-1719

Teutamus hirtellus sp. nov.

( Figures 2 H, 14 A)

Diagnosis

The male holotype of T. hirtellus sp. nov. closely resembles that of T. rothorum in having a large conductor but can be easily distinguished by the more elongate conductor pointing anteriad instead of prolaterad ( Figure 14 A). To our knowledge, only the male of this new species and those of T. andrewdavisi ( Figure 14 B) and T. vittatus possess a group of bristles on the RTA. In other species the postepigastric scuta slightly extend posteriorly ( Figure 2 I), whereas in T. hirtellus sp. nov. and T. orthogonus sp. nov. they extend further and fuse with the dorsal scutum to form a complete tubular ring enclosing anterior half of the opisthosoma entirely ( Figure 2 H).

Type material

Holotype. ♂, Philippines: Palawan, Puerto Princesa Region: Sabang Underground NP, Daylight Hole and Lions Cave , 100–200 m, primary forest , 6–8 December 2009, leg. A. Schulz ( MHNG, PAL-09 / 07) .

Etymology

The specific epithet is a nominative form of an adjective (Latin: hirtellus , - a,- um = slightly hairy), and refers to the tuft of bristles on RTA of the male palp.

Description

Male (holotype). Total length 4.74; prosoma 2.26 long, 1.44 wide; opisthosoma 2.48 long, 1.26 wide. Leg formula: 1423; I 10.48 (2.36, 0.92, 3.38, 2.32, 1.50); II 8.08 (1.86, 0.90, 2.54, 1.76, 1.02); III 6.84 (1.54, 0.88, 2.00, 1.44, 0.98); IV 10.16 (2.46, 0.92, 2.88, 2.56, 1.34). Spination: Leg I: Femora p1-1; tibiae p10 r10; metatarsi p6 r6. Leg II: Tibiae p10 r8; metatarsi p6 r5. Carapace dark reddish brown; submarginal lobes blunt, slightly elevated. Sternum dark reddish brown. Legs hairless, bi-coloured: Coxae, trochanters and femora dark brown, other segments slightly paler, their distal portion white. Opisthosoma elongate-ovoid. Dorsal scutum covering two-thirds of length of opisthosoma. Venter covered by posteriorly extended post-epigastric scuta ( Figure 2 H).

Palp ( Figure 14 A): RTA digitiform in ventral view, elongated-slender, its apex bluntly pointed, lateral margin covered with bristles. DTA short, almost indistinct. Tegulum elongate-ovoid, slightly excavated on apico-prolateral side. Conductor elongated, broad at base, its apex sharply pointed, almost reaching apex of cymbium. Embolic base clearly visible.

Female. Unknown.

Distribution

Known only from the type locality on the island of Palawan, the Philippines.

Figures

Figure 2. Teutamus orthogonus sp. nov., male holotype (A). Teutamus jambiensis, male paratype (MHNG) (B). Teutamus andrewdavisi, male paratype (MHNG) (C). Teutamus politus, male (D, I) from southern Thailand, female holotype (MSNG) (E). Teutamus brachiatus sp. nov., male paratype (F). Teutamus lioneli sp. nov., male paratype (G). Teutamus hirtellus sp. nov., male holotype (H). (A – G) Habitus, dorsal and (H) ventral; (I) opisthosoma, ventral. Abbreviations: ES, epigastric scutum; PS, post-epigastric scutum; SM, submarginal lobe.

Figure 14. Teutamus hirtellus sp. nov., male holotype (A). Teutamus andrewdavisi, male paratype (MHNG) (B). Teutamus jambiensis, male paratype (MHNG) (C). (A – C) Male palp, ventral. Scale bars 0.25 mm.