Psiloderces xichang Li & Chang, 2020
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publication ID |
https://dx.doi.org/10.3897/zookeys.902.38967 |
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publication LSID |
lsid:zoobank.org:pub:2DB04880-0FB8-48BF-AAF3-5EC2176F8D6E |
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persistent identifier |
https://treatment.plazi.org/id/A219F896-1005-440F-B783-6E8A08B3252E |
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taxon LSID |
lsid:zoobank.org:act:A219F896-1005-440F-B783-6E8A08B3252E |
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treatment provided by |
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scientific name |
Psiloderces xichang Li & Chang |
| status |
sp. nov. |
Psiloderces xichang Li & Chang sp. nov. Figs 8 View Figure 8 , 9 View Figure 9 , 28G View Figure 28 , 30 View Figure 30
Types.
Holotype: ♂ (IZCAS), Philippines, Luzon Island, Rizal Province, Quezon City, Rodriguez area, Montalban Village, Pamitinan Cave, 14°43.7916'N, 121°11.3580'E, 102 m, 5.VI.2015, F. Ballarin & Y. Li. Paratype: 1♀ (IZCAS), same data as holotype.
Etymology.
The species name is a noun in apposition derived from the Chinese pinyin “xìcháng” (slender and long) and refers to the extremely slender palp structures.
Diagnosis.
Diagnostic features of males and females are discussed in the diagnosis of P. cuyapoensis sp. nov.
Description.
Male (Holotype). Total length 2.00; carapace 0.70 long, 0.90 wide; abdomen 1.30 long, 1.00 wide. Carapace round and brown, with 2 longitudinal dark brown bands laterally, medially with dark brown line (Fig. 8D View Figure 8 ). Chelicerae brown (Fig. 28G View Figure 28 ). Clypeus dark brown, with long, slightly bent medial projection, bearing few setae (Fig. 8C, D View Figure 8 ). Endites dark brown, light brown basally. Labium dark brown delimiting pair of light brown circular dots. Sternum dark brown, delimiting light brown band medially. Abdomen elongated, dorsum with complex brown patterns, antero-ventrally dark brown with pair of circular patches followed by semi-circular patch, posterior with indistinct dark brown and light brown patterns. Legs uniformly brown; measurements: I 10.30 (2.80, 0.25, 3.20, 2.80, 1.25), II 8.91 (2.40, 0.31, 2.60, 2.60, 1.00), III 6.23(1.72, 0.25, 1.75, 1.63, 0.88), IV 9.34 (2.25, 1.00, 2.66, 2.34, 1.09). Palp equally wide throughout its length (Fig. 9A-D View Figure 9 ): femur extremely slender, 6 times longer than patella; patella not swollen; tibia 2.50 times shorter than femur; cymbium 2 times shorter than femur, protrusion with 2 distinct bristles basally and anteriorly; bulb pale brown, bulging pyriform with embolus arising distally; embolus irregular, resembles a petal (Fig. 9A View Figure 9 ).
Female (Paratype). General features and coloration similar to those of male (Fig. 8E, F View Figure 8 ). Measurements: total length 2.16; carapace 0.75 long, 0.86 wide; abdomen 1.41 long, 1.02 wide. Leg measurements: I 9.66 (2.60, 0.31, 3.00, 2.66, 1.09), II 7.91 (2.13, 0.31, 2.34, 2.19, 0.94), III 6.63 (1.63, 0.25, 1.50, 1.50, 1.75), IV 10.96 (2.80, 0.31, 3.60, 3.00, 1.25) Endogyne (Fig. 8A View Figure 8 ): widely spaced, earlobe-like spermathecae, ratio of spermathecae interdistances and spermathecae width 1:4 (Fig. 8A View Figure 8 ).
Distribution.
Known only from the type locality (Fig. 30 View Figure 30 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.