Sphingius spinosus, Dankittipakul, Pakawin, Tavano, Maria & Singtripop, Tippawan, 2011

Dankittipakul, Pakawin, Tavano, Maria & Singtripop, Tippawan, 2011, Neotype designation for Sphingius thecatus Thorell, 1890, synonymies, new records and descriptions of six new species from Southeast Asia (Araneae, Liocranidae), Zootaxa 3066, pp. 1-20 : 10

publication ID

https://doi.org/ 10.5281/zenodo.201922

DOI

https://doi.org/10.5281/zenodo.5576050

persistent identifier

https://treatment.plazi.org/id/AA57221E-7330-1212-A6A3-FF4B3B19F8C5

treatment provided by

Plazi

scientific name

Sphingius spinosus
status

sp. nov.

Sphingius spinosus View in CoL sp. nov.

Figures 22–26 View FIGURES 22 – 26

Type material. Holotype: ♂, THAILAND: Nakhorn Sri Thammarat Province: Khao Luang NP, Ban Kiriwong, 170 m, 10 February 1991, leg. P.J. Schwendinger ( MHNG, 596) . Paratypes: Same data as holotype, 1♂, 2♀ ( MHNG, 596) . Nakhorn Sri Thammarat Province: Khanom District, Khao Dad Far, 680 m, evergreen forest, 14 July 2005, leg. P.J. Schwendinger, 1♂, ( MHNG, TH- 05/05) . Yala Province: Bang Lang NP, 150 m, 2 January 1990, leg. P.J. Schwendinger, 1♂, ( MHNG) . INDONESIA: Sumatra, West Sumatra Province: Rimbo Panti Nature Reserve, ca. 30 km north of Lubuk Sikaping, 300–400 m, primary forest, leg. P.J. Schwendinger 1♂, 1♀ ( MHNG, Sum-06/18) . MALAYSIA: Pahang State: Charas Hill, ca. 3 km north of Panching, 60 m, evergreen forest on limestone, 9–10 July 2001, leg. P.J. Schwendinger, 1♂, 1♀ ( MHNG, SIM- 01/12) ; 60 m, rainforest remnant at foot of limestone hill, 3–4 June 2004, leg. P.J. Schwendinger, 1♂, 1♀ ( MHNG, MAL- 04/08) ; Trengganu State: Kuala Buka, 12 March 1977, leg. T. Jaccoud & P. Marcuard, 1♀, ( MHNG, Sph-332) .

Diagnosis. Males of S. spinosus sp. nov. can be distinguished from its congeners by the possession of a small, mesal spine on the median apophysis of the male palp ( Figs 22–24 View FIGURES 22 – 26 ); females by the large, spherical anterior bursae lacking stalks ( Fig. 26 View FIGURES 22 – 26 ).

Etymology. The specific epithet, a nominative form of an adjective, is derived from Latin ( spinosus , -a, -um = spiny) and refers to a small spine on the median apophysis of the male palp.

Description. Male (holotype): Total length 3.64. Prosoma 1.76 long, 1.20 wide. Opisthosoma 1.88 long, 1.10 wide. Spination: femora I–IV 1 d; tibia I 1-1-0- 1 v, II 1- 1v, III–IV 2-1 -2, 1p, 1-0-1r; metatarsi III–IV 1 pv, 1- 1v. Eye size and interdistances: AME 1/3 d of ALE; PME 3/4 d of PLE; AME-AME their d apart; AME-ALE 1/2 d of AME; PME-PME 1 d of AME; PME-PLE 1/2 d of AME; PME-PLE 3/4 d of AME; ALE-PLE 3/4 d of AE. MOQ longer than wide, narrower in front than behind.

Prosoma dark chestnut-brown; lateral margin rebordered, posterior margin slightly excavated; carapace integument finely punctated. Fovea deep, longitudinal. Sternum dark brown; surface integument finely punctated. Chelicerae dark brown. Labium and gnathocoxae brown. Legs yellowish brown.

Opisthosoma elongate-ovoid. Dorsal scutum covering almost entire length of opisthosoma, dark brown, clothed with fine pubescence. Epigastric scutum extending anteriorly, represented by groove collar in dorsal view. Ventral scutum smaller than dorsal one, weakly sclerotized, fused with epigastric scutum.

Palp ( Figs 22–24 View FIGURES 22 – 26 ): RTA triangular, gradually narrowing towards its apex, reaching half length of cymbium. Embolus filiform, elongated; embolic base spiniform, originating prolaterally on membranous area between tegulum and subtegulum. Conductor indistinct. Median apophysis rostrated, with small, sharply pointed spine situated meso-retrolaterally. Accessory tegular apophysis minute, triangular, colorless and transparent, situated posterior to embolus.

Female (paratype, MHNG, 596): Total length 3.78. Prosoma 1.82 long, 1.22 wide. Opisthosoma 1.96 long, 1.18 wide. Spination: femora I–III 1 d; tibia I–III 1-1 -0v, 1pl, IV 1 -0- 2 v, 1-1r; metatarsi III–IV 1 pv, 1-0- 1 v. Eye size and interdistances: AME 1/2 d of ALE; PME 2/3 d of PLE; AME-AME their d apart; AME-ALE 1/4 d of AME; PME-PME 1/2 d of AME; PME-PLE 1/3 d of AME; PME-PLE 1/2 d of AME; ALE-PLE 3/4 d of AE. MOQ longer than wide, narrower in front than behind.

General appearance as in male except prosoma slightly wider posteriorly; carapace and sternum smooth; dorsal and ventral scuta on opisthosoma absent; opisthosoma creamy white, sparsely covered with black pubescence.

Genitalia ( Figs 25–26 View FIGURES 22 – 26 ): Epigynal plate elongate-ovoid, weakly sclerotized. Atrium quadrangular, situated anteriorly, its posterirorly margin indistinct. Copulatory orifices large, elliptic, situated on posterior lateral border of epigynal atrium. Insemination ducts short, running obliquely between copulatory orifices and spermathecae. Bursae large, spherical, provided with few pores of ductules, originating on middle portion of insemination ducts. Spermathecae reniform, distinctly narrowed anteriorly. Fertilization ducts acicular-shaped.

Natural history. Types of S. spinosus sp. nov. were collected from pristine evergreen forests at low altitudes.

Distribution. Thailand, Indonesia, Malaysia ( Fig. 40 View FIGURE 40 ).

MHNG

Museum d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Liocranidae

Genus

Sphingius

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