Merizocera peraderiya Li, 2020

Chang, Wan-Jin, Yao, Zhiyuan & Li, Shuqiang, 2020, Twenty-eight new species of the spider genus Merizocera Fage, 1912 (Araneae, Psilodercidae) from South and Southeast Asia, ZooKeys 961, pp. 41-118 : 41

publication ID

https://dx.doi.org/10.3897/zookeys.961.53058

publication LSID

lsid:zoobank.org:pub:B5627BFE-56A2-42B3-B3A5-96BAE07724F4

persistent identifier

https://treatment.plazi.org/id/1773F0E5-4FF0-4028-AB88-4BF281731579

taxon LSID

lsid:zoobank.org:act:1773F0E5-4FF0-4028-AB88-4BF281731579

treatment provided by

ZooKeys by Pensoft

scientific name

Merizocera peraderiya Li
status

sp. nov.

Merizocera peraderiya Li View in CoL sp. nov. Figures 25 View Figure 25 , 26 View Figure 26 , 52 View Figure 52

Type material.

Holotype: male (IZCAS), Royal Botanic Gardens (7°16.52'N, 80°35.71'E, elevation 484 m), Peraderiya Town, Kandy District, Central Province, Sri Lanka, 7 October 2014, S. Kosala leg. Paratype: 1 female (IZCAS), same data as holotype.

Etymology.

The specific name refers to the type locality; noun in apposition.

Diagnosis.

Diagnosis features of males and females are discussed in M. kurunegala sp. nov. Males with angularly bent embolus and furcate conductor (Fig. 25B View Figure 25 ). Females with a pair of twisted spermathecae (Fig. 26A View Figure 26 ).

Description.

Male (holotype). Total length 1.33; carapace 0.66 long, 0.59 wide; abdomen 0.67 long, 0.46 wide. Carapace circular, brownish, with dark brown marks laterally and dark brown median stripe on anterior half (Fig. 26C View Figure 26 ). Fovea shallow. Thoracic region distinctly elevated medially. Clypeus brownish, with dark brown marks medially. Labium dark brown. Sternum dark brown but lighter medially. Abdomen slightly elongated, dark grey, with dark brown marks dorsally and ventrally. Legs light brown; measurements: I 7.81 (2.05, 0.22, 2.38, 2.20, 0.96), II 5.35 (1.41, 0.22, 1.60, 1.41, 0.71), III 4.11 (1.13, 0.19, 1.19, 1.06, 0.54), IV 6.49 (1.66, 0.21, 2.00, 1.78, 0.84). Palp (Fig. 25A-D View Figure 25 ): femur slender, 2.5 times longer than patella; patella not swollen; tibia slightly swollen, half as long as femur; cymbium with distal protrusion, length ratio of dorsal elongation and cymbium 0.72; bulb pale yellow, pyriform with embolus and conductor arising distally; embolus thin and dark with pointed tip, emerging laterally, bent at right-angle; conductor basally attached with embolus, bifurcate, one slender and slightly bent, the other hooked and twice as wide, conductor stem half as long as the width of bulb.

Female (paratype). General features and colouration similar to those of male (Fig. 26D, E View Figure 26 ). Measurements: total length 1.28; carapace 0.61 long, 0.51 wide; abdomen 0.69 long, 0.52 wide. Leg measurements: I 4.25 (1.06, 0.20, 1.28, 1.05, 0.66), II 3.25 (0.83, 0.19, 0.92, 0.80, 0.51), III 2.66 (0.67, 0.17, 0.71, 0.68, 0.43), IV missing. Epigastric area (Fig. 26B View Figure 26 ): dark brown, patch nearly elliptical. Endogyne (Fig. 26A View Figure 26 ) with a pair of twisted S-shaped spermathecae, ratio of the width of spermatheca to the interdistance of spermathecae 1:4.

Distribution.

Known only from the type locality (Sri Lanka; Fig. 52 View Figure 52 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Psilodercidae

Genus

Merizocera