Teutamus orthogonus, Dankittipakul, Pakawin, Tavano, Maria & Singtripop, Tippawan, 2012
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publication ID |
https://doi.org/ 10.110.1080/00222933.2012.681314 |
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DOI |
https://doi.org/10.5281/zenodo.6167522 |
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persistent identifier |
https://treatment.plazi.org/id/03A6879F-A854-FFBB-E5C9-FB06056061CF |
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treatment provided by |
Jeremy |
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scientific name |
Teutamus orthogonus |
| status |
sp. nov. |
Teutamus orthogonus View in CoL sp. nov.
( Figures 1 View Figure 1 A, 2 A, 3 E, 11 A–E)
Diagnosis
Somatically, T. orthogonus sp. nov. bears little resemblance to its congeners; it has a distinctly shorter epigastric scutum ( Figure 1 View Figure 1 A) and a reduced number of spines on anterior legs. Males resemble those of T. rhino in having an elongate tegulum but the conductors are conical rather than spiniform ( Figure 11 View Figure 11 A); females share close similarities on the epigyne but can be distinguished by the rhomboidal spermathecae and the straight proximal portion of the insemination ducts ( Figure 11 View Figure 11 E).
Type material
Holotype. ♂, Indonesia: Sumatra, Jambi Province: Mt Kirinci, foot path to the summit, west of Kersik Tua , 2160 m, evergreen hill forest , 17 February 2000, leg. P.J. Schwendinger ( MHNG, Sum-00 / 13) .
Paratypes. Data as holotype, 3♂, 2♀ ( MHNG, Sum-00 / 13) .
Etymology
The specific epithet is latinization of a Greek word (oρ ϑ o ζ (orthos) = straight), referring to the straight proximal portion of insemination ducts.
Description
Male (holotype). Total length 4.86; prosoma 2.36 long, 1.52 wide; opisthosoma 2.50 long, 1.26 wide. Leg formula: 1423; I 10.76 (2.44, 0.92, 3.42, 2.36, 1.62); II 8.56 (2.02, 0.90, 2.64, 1.88, 1.12); III 7.16 (1.62, 0.92, 2.12, 1.54, 0.96); IV 10.56 (2.58, 0.92, 2.88, 2.62, 1.56). Spination: Leg I: Femora p1-1; tibiae p7 r7; metatarsi p4 r4. Leg II: Tibiae p7 r6; metatarsi p4 r3. Carapace reddish brown; submarginal lobes blunt, slightly elevated ( Figure 1 View Figure 1 A). Sternum reddish brown. Legs hairless, bi-coloured: Femora to tarsi yellowish, other segments reddish brown. Opisthosoma elongateovoid. Dorsal scutum covering almost two-thirds length of opisthosoma, indented posteriorly. Epigastric scutum short ( Figure 2 View Figure 2 A). Post-epigastric scuta extending half length of opisthosoma.
Palp ( Figure 11 View Figure 11 A–C): RTA triangular, strongly excavated medially, its apex blunt, anterior margin with colourless and transparent lamina. DTA digitiform, weakly sclerotized. Tegulum elongate-ovoid, slightly protruding posteriorly. Conductor triangular, its apex sharply pointed, gradually narrowing anteriorly. Embolic base clearly visible.
Female (paratype, MHNG, MAL-04/01): Total length 5.78; prosoma 2.62 long, 1.58 wide; opisthosoma 3.16 long, 1.60 wide. Leg formula: 1423; I 11.30 (2.48, 0.92, 3.88, 2.56, 1.46); II 8.76 (2.00, 0.92, 2.94, 1.72, 1.18); III 7.66 (1.66, 0.90, 2.14, 1.76, 1.20); IV 10.96 (2.54, 0.94, 3.18, 2.68, 1.62). Spination: Leg I: Femora p1-1; tibiae p7 r7; metatarsi p4 r4. Leg II: Tibiae p7 r7; metatarsi p4 r3. General appearance as in male; legs reddish brown, uniform in colour; dorsum of opisthosoma dark greenish, posteriorly with a series of pale chevrons.
Genitalia ( Figure 11 View Figure 11 D,E): Epigyne with circular copulatory orifices situated anterior medially. Insemination ducts descending obliquely then ascending anteriorly, connected to apical portion of spermathecae. Spermathecae trapezoidal, strongly narrowed and elongated anteriorly. Fertilization ducts lanceolated.
Distribution
Known only from the type locality on the west coast of Sumatra ( Figure 18).
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