Leclercera yandou, Chang & Li, 2020

Chang, Wan-Jin & Li, Shuqiang, 2020, Thirty-one new species of the spider genus Leclercera from Southeast Asia (Araneae, Psilodercidae), ZooKeys 913, pp. 1-87 : 1

publication ID	https://dx.doi.org/10.3897/zookeys.913.48650
publication LSID	lsid:zoobank.org:pub:575D3DC1-CBF4-4E99-816D-0F68F931F927
persistent identifier	https://treatment.plazi.org/id/71776DDF-B11C-4F46-9650-9D56E92D76BC
taxon LSID	lsid:zoobank.org:act:71776DDF-B11C-4F46-9650-9D56E92D76BC
treatment provided by	ZooKeys by Pensoft
scientific name	Leclercera yandou
status	sp. nov.

Treatment

Leclercera yandou View in CoL sp. nov. Figs 5 View Figure 5 , 6 View Figure 6 , 55I View Figure 55 , 58 View Figure 58

Types.

Holotype: ♂ (IZCAS), Malaysia, Malay Peninsula, Pahang States, Fraser’s Hill, Telecom loop, Secondary Forest, 3°43.1050'N, 101°45.1643'E, elevation ca 1300 m, 17.II.2015, H. Zhao leg. Paratype: 1♀ (IZCAS), same data as holotype.

Etymology.

The species name is a noun in apposition derived from the Chinese pinyin “yāndǒu” (smoking pipe) and refers to the palpal bulb which resembles a smoking pipe (Fig. 6B View Figure 6 ).

Diagnosis.

Males of L. yandou sp. nov. can be distinguished from congeners by the structure of the bulb, with a rounded base bearing a slightly curved and elongated embolus (Fig. 6B View Figure 6 ), the presence of a swollen triangular tibia with a retrolateral apophysis (Fig. 6D View Figure 6 ) (vs. absence of swollen triangular tibia in congeners); females can be differentiated from congeners by a pair of saucer-shaped, sinuous spermathecae (Fig. 5A View Figure 5 )

Description.

Male (Holotype). Total length 2.50; carapace 0.75 long, 0.94 wide; abdomen 1.75 long, 0.80 wide. Carapace round and brown, with three longitudinal dark brown bands, median band twice as wide as lateral band (Fig. 5C View Figure 5 ). Chelicerae brown (Fig. 55I View Figure 55 ). Clypeus brown. Endites dark brown, light brown basally. Labium dark brown. Sternum brown, with dark brown patched laterally. Abdomen elongated, dorsum with 3 pairs of dark brown spots medially, median dark brown bands concentrated posteriorly, antero-ventrally brown with elliptical patch, posterior part with indistinct dark and light brown pattern. Legs uniformly brown; measurements: I 8.54 (2.81, 0.25, 2.97, 1.88, 0.63), II missing, III missing, IV 8.09 (2.40, 0.25, 2.19, 2.25, 1.00). Palp (Fig. 6A-D View Figure 6 ): femur slender, five times longer than patella; patella not swollen; tibia swollen, 1.5 times shorter than femur, forming a triangular shape with a retrolateral apophysis bearing a spine; cymbium two times shorter than femur, dark brown anteriorly; bulb spatulate with circular base, elongated embolus arises distally; embolus slightly bent, two times longer than the length of rounded tegulum and half the width of tegulum (Fig. 6B View Figure 6 ).

Female (Paratype). General features and coloration similar to those of male (Fig. 5D, E View Figure 5 ). Measurements: total length 2.10; carapace 0.80 long, 0.88 wide; abdomen 1.30 long, 0.70 wide. Leg measurements: I-III missing, IV 5.78 (1.63, 0.25, 1.60, 1.50, 0.80). Epigastric area (Fig. 5B View Figure 5 ): ovoid dark brown patch. Endogyne (Fig. 5A View Figure 5 ): a pair of sinuous spermathecae arching towards the anterior, ratio of width to length of entire spermathecae 1:7.

Distribution.

Known only from the type locality (Fig. 58 View Figure 58 ).