Singaporemma singulare Shear, 1978

Yan, Fanhu & Lin, Yucheng, 2018, A review of the spider genus Singaporemma (Araneae: Tetrablemmidae), with the description of a new species, Zootaxa 4392 (2), pp. 329-346 : 335

publication ID	https://doi.org/ 10.11646/zootaxa.4392.2.6
publication LSID	lsid:zoobank.org:pub:E0D597C5-194B-4EF0-AD6D-3A178F8DD2F7
DOI	https://doi.org/10.5281/zenodo.5983984
persistent identifier	https://treatment.plazi.org/id/039487ED-FFDC-4934-35BC-FE3CFAE2A9F5
treatment provided by	Plazi
scientific name	Singaporemma singulare Shear, 1978
status

Treatment

Singaporemma singulare Shear, 1978 View in CoL

Figures 6C–c View FIGURE 6 , 9A View FIGURE 9

Singaporemma singularis Shear, 1978: 36 , figs 108–111

S. singulare Lin et al., 2017: 47 View in CoL , figs 22A–H, 23A–E, G–H, 24A–H, 25A–E, 26A–D.

Examined material. Holotype ♂ and Paratype 1♀ ( AMNH), SINGAPORE: near MacRitchie Reservoir, 25 October 1950, M.W.F. Tweedie leg.

Other material. 5♂ and 4♀ ( SUMNH), SINGAPORE: Central Catchment Nature Reserve , Treetop Walk, 103°48.490′N, 1°21.222′E, 28 August 2015, S. Li and Y. Tong leg. GoogleMaps

Diagnosis. Male of S. singulare differs from those of S. bifurcata and S. wulongensis by the embolus without furcate tip ( Fig. 6c View FIGURE 6 vs. Fig. 6e–f View FIGURE 6 ); from male of S. adjacens by the slender, narrower embolus ( Fig. 6c View FIGURE 6 vs. Fig. 6h View FIGURE 6 ); from male of S. takensis sp. n. by the nearly straight embolus ( Fig. 6c View FIGURE 6 vs. Fig. 6g View FIGURE 6 ); from male of S. banxiaoensis , S. halongense , and S. lenachanae by the embolic base starts from the centre of bulbous prolateral surface ( Fig. 6C View FIGURE 6 vs. Fig. 6A–B, 6D View FIGURE 6 ) and the knife-shaped embolic tip ( Fig. 6c View FIGURE 6 vs. Fig. 6a–b, 6d View FIGURE 6 ), but the blunt embolic tip in S. halongense and S. lenachanae ( Fig. 6a, 6d View FIGURE 6 ), the larger palpal tibia, shorter embolus in S. banxiaoensis ( Fig. 6B, 6b View FIGURE 6 ). Female of S. singulare can be distinguished from the females of all other congeners with exception of S. lenachanae by the absence of central process ( Fig. 9A View FIGURE 9 vs. Figs 2E View FIGURE 2 , 5C–D View FIGURE 5 , 7A–C View FIGURE 7 , 8A–B View FIGURE 8 ). Female of S. singulare is closer to S. lenachanae in having a similar configuration of vulva, but can be distinguished from the latter by the shorter lateral horns, the wider postgenital plate, and the vulval ducts bent forward ( Fig. 9A View FIGURE 9 vs. Fig. 9B View FIGURE 9 ).

Description. See Lin et al., 2017: 47.

Distribution. Singapore ( Fig. 10 View FIGURE 10 ).

Remarks. Shear (1978) originally described S. singulare from Singapore that was appointed to type species of the genus Singaporemma . Because only the male specimen was available at that time, he illustrated an embolus of the right palp that was said to be “curving sharply posteriorly” ( Shear, 1978: 36, figs 109–110). Schwendinger and Košulič (2015) suggested that Shear’s description of the male of S. singulare was doubtful because it was based on the only male specimen, and they suspect that an atypical specimen may have been used to describe the male palp of S. singulare ( Schwendinger & Košulič, 2015) . After re-examining the holotype of the species and photographed its left palp ( Fig. 6C–c View FIGURE 6 ), we can confirm that a deformed embolus was indeed described by Shear (1978).