Siamlema suea Zhao & Li, 2020

Zhao, Huifeng, Li, Shuqiang & Zhang, Aibing, 2020, Taxonomic revision of Telemidae (Arachnida, Araneae) from East and Southeast Asia, ZooKeys 933, pp. 15-93 : 15

publication ID

https://dx.doi.org/10.3897/zookeys.933.38653

publication LSID

lsid:zoobank.org:pub:AE87B5CF-9728-466B-AB05-6BFFFED802D4

persistent identifier

https://treatment.plazi.org/id/663258A4-7C24-44AA-9422-7EC1BE6F0430

taxon LSID

lsid:zoobank.org:act:663258A4-7C24-44AA-9422-7EC1BE6F0430

treatment provided by

ZooKeys by Pensoft

scientific name

Siamlema suea Zhao & Li
status

sp. nov.

Siamlema suea Zhao & Li sp. nov. Figures 22 View Figure 22 , 23 View Figure 23 , 33 View Figure 33

Type material.

Holotype: ♂ (IZCAS), Thailand, Yala Province, Mueang District, Suea Cave, 6.5226N, 101.2311E, elevation ca. 43 m, XI.2015, Z. Chen, G. Zhou, and Q. Zhao leg. Paratypes: 1♂ and 4♀ (IZCAS), same data as holotype.

Other material examined.

1♀ (molecular voucher, IZCAS), same data as holotype.

Etymology.

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

Diagnosis.

This species resembles S. changhai sp. nov. but can be distinguished by the following: six eyes ringed with black or eyes vestigial (Figs 22A View Figure 22 , 23B View Figure 23 ) (vs. absent); the lack of a bulbal apophysis (Fig. 22B-D View Figure 22 ) (vs. present), having a spine on the palpal tibia retrolaterally (Fig. 22D View Figure 22 ) (vs. absent), the absence of a femoral dorsal spine (Fig. 22C, D View Figure 22 ) (vs. present); and a globular receptacle (Fig. 23A View Figure 23 ) (vs. tube-shaped).

Description.

Male (holotype). Total length 1.11. Carapace 0.46 long, 0.41 wide. Abdomen 0.60 long, 0.50 wide. Carapace light brown (Fig. 22A View Figure 22 ). Six vestigial eyes (Fig. 22A View Figure 22 ). Chelicerae, legs, labium, and endites brown. Sternum bright brown with sparse setae. Leg measurements: I 3.46 (1.03, 0.16, 1.05, 0.74, 0.48); II 2.92 (0.90, 0.16, 0.83, 0.60, 0.43); III 2.07 (0.63, 0.13, 0.59, 0.40, 0.32); IV 2.77 (0.85, 0.16, 0.77, 0.59, 0.40). Abdomen brown with a few long setae (Fig. 22A View Figure 22 ).

Palp. Tibia 1.38 times longer than patella, cymbium 0.94 times shorter than tibia, femur 1.17 times longer than cymbium (Fig. 22C, D View Figure 22 ); cymbial apophysis stout and cone shaped (Fig. 22C View Figure 22 ); tibia with 2 spines, one dorsal spine distally, the other bifurcate, located retrolaterally medially (Fig. 22D View Figure 22 ); patella with retrolateral semi-round extension mesially (Fig. 22D View Figure 22 ); bulb droplet shaped as in Fig. 22C, D View Figure 22 ; embolus strongly sclerotized, and tiny in comparison to bulb.

Female. Total length 1.20. Carapace 0.45 long, 0.41 wide. Abdomen 0.70 long, 0.66 wide. Coloration as in male (Fig. 23B, C View Figure 23 ). Six eyes ringed with black (Fig. 23B View Figure 23 ). Leg measurements: I 3.15 (0.94, 0.16, 0.97, 0.61, 0.47); II 2.79 (0.84, 0.16, 0.81, 0.55, 0.43); III 2.02 (0.62, 0.13, 0.56, 0.38, 0.33); IV 2.73 (0.85, 0.14, 0.76, 0.56, 0.42). Abdomen brown (Fig. 23B View Figure 23 ). Neck of receptacle umbrella-shaped, and distal part of receptacle globular (Fig. 23A View Figure 23 ).

Distribution.

Thailand (Yala, site 8 in Fig. 33 View Figure 33 ), known only from the type locality.

Kingdom

Animalia

Phylum

Arthropoda

Order

Araneae

Family

Telemidae

Genus

Siamlema