Merizocera ranong 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/A1FBCDBB-C979-4A5B-9156-61C7ABB01FC1

taxon LSID

lsid:zoobank.org:act:A1FBCDBB-C979-4A5B-9156-61C7ABB01FC1

treatment provided by

ZooKeys by Pensoft

scientific name

Merizocera ranong Li
status

sp. nov.

Merizocera ranong Li sp. nov. Figures 31 View Figure 31 , 32 View Figure 32 , 54 View Figure 54

Type material.

Holotype: male (IZCAS), forest of Suk Sum Ran Village (9°28.80'N, 98°30.56'E, elevation 46 m), Kapoe District, Ranong, Thailand, 28 October 2014, P. Wongprom 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. betong sp. nov. Males with a crinkly embolus, lamina-like embolus tip, and swollen pyriform bulb (Fig. 31B View Figure 31 ). Females with a pair of posteriorly directed tubular spermathecae (Fig. 32A View Figure 32 ).

Description.

Male (holotype). Total length 1.28; carapace 0.59 long, 0.52 wide; abdomen 0.64 long, 0.49 wide. Carapace circular, brownish, with dark brown marks laterally and dark brown median stripe on anterior half (Fig. 32C View Figure 32 ). Fovea shallow. Thoracic region distinctly elevated medially. Clypeus brownish, with dark brown marks medially. Labium dark brown. Sternum dark brown but lighter medially. Abdomen ovoid, brownish, with darker brown marks dorsally and ventrally. Legs light brown; measurements: I 6.19 (1.70, 0.21, 1.90, 1.62, 0.76), II 4.46 (1.20, 0.20, 1.33, 1.13, 0.61), III 3.40 (0.92, 0.19, 1.00, 0.84, 0.45), IV 5.05 (1.34, 0.20, 1.55, 1.27, 0.69). Palp (Fig. 31A-D View Figure 31 ): femur slender, thrice longer than patella; patella not swollen; tibia not swollen; cymbium with distal protrusion, length ratio of dorsal elongation and cymbium 0.90; bulb pale yellow, swollen pyriform with embolus arising distally; embolus with crinkly stalk and lamina-like at the tip, stalk 1/3 length of bulb; conductor absent.

Female (paratype). Similar to male in colouration and general features but slightly larger (Fig. 32D, E View Figure 32 ). Measurements: total length 1.28; carapace 0.62 long, 0.54 wide; abdomen 0.66 long, 0.51 wide. Leg measurements: I 5.19 (1.36, 0.21, 1.56, 1.33, 0.73), II 4.02 (1.06, 0.20, 1.15, 1.01, 0.60), III 3.25 (0.85, 0.19, 0.89, 0.83, 0.49), IV 4.75 (1.19, 0.20, 1.45, 1.20, 0.71). Epigastric area (Fig. 32B View Figure 32 ): dark brown elliptical patch, medially with horizontal pale brown slit. Endogyne (Fig. 32A View Figure 32 ) with a pair of posteriorly directed tubular spermathecae, gradually enlarged posteriorly.

Distribution.

Known only from the type locality (Thailand; Fig. 54 View Figure 54 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Psilodercidae

Genus

Merizocera