Sundalema khaorakkiat 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/6D05CD58-B0CF-48B4-99B7-D09DD62F0CB0

taxon LSID

lsid:zoobank.org:act:6D05CD58-B0CF-48B4-99B7-D09DD62F0CB0

treatment provided by

ZooKeys by Pensoft

scientific name

Sundalema khaorakkiat Zhao & Li
status

sp. nov.

Sundalema khaorakkiat Zhao & Li sp. nov. Figures 26 View Figure 26 , 27 View Figure 27 , 33 View Figure 33

Type material.

Holotype: ♀ (IZCAS), Thailand, Songkhla Province, Rattaphum District, Khao Rak Kiat Cave, 7.0724N, 100.2502E, elevation ca. 52 m, XI.2015, Z. Chen, G. Zhou and Q. Zhao leg. Paratypes: 2♂ and 2♀ (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. acicularis comb. nov. but can be distinguished by the following characters: the eyes are vestigial (Figs 26B View Figure 26 , 27A View Figure 27 ) (vs. ringed with black); the receptacle is coiled into 1.25 loops (Fig. 26A View Figure 26 ) (vs. 2.5 loops); the embolus is longer than the cymbium (Fig. 27C, D View Figure 27 ) (vs. shorter), and the palpal tibia/cymbium ratio is 0.4 (Fig. 27C, D View Figure 27 ) (vs. 0.45).

Description.

Female (holotype). Total length 1.25. Carapace 0.58 long, 0.50 wide. Abdomen 0.63 long, 0.55 wide. Carapace pale white (Fig. 26B View Figure 26 ). Six vestigial eyes (Fig. 26B View Figure 26 ). Chelicerae, legs, labium milky white, endites brown (Fig. 26B View Figure 26 ). Sternum milky white with sparse setae (Fig. 26B View Figure 26 ). Leg measurements: I 3.93 (1.21, 0.19, 1.21, 0.80, 0.52); II 3.52 (1.10, 0.19, 1.06, 0.72, 0.45); III 2.45 (0.73, 0.18, 0.69, 0.49, 0.36); IV 3.28 (1.03, 0.18, 0.92, 0.70, 0.45). Abdomen pale brown with a few long setae (Fig. 26B, C View Figure 26 ). Receptacle coiled into 1.25 loops, and neck much thinner than mesial part (Fig. 26A View Figure 26 ).

Male. Total length 1.17. Carapace 0.54 long, 0.48 wide. Abdomen 0.63 long, 0.50 wide. Eyes and coloration as in female (Fig. 27A View Figure 27 ). Leg measurements: I 4.08 (1.24, 0.19, 1.27, 0.86, 0.53); II 3.70 (1.13, 0.19, 1.15, 0.75, 0.48); III 2.67 (0.81, 0.16, 0.76, 0.56, 0.39); IV 3.48 (1.06, 0.17, 1.00, 0.76, 0.49). Palp: Tibia 1.65 times longer than patella, cymbium 2.06 times longer than tibia, 1.50 times longer than femur; cymbial apophysis dark brown and cone shaped (Fig. 27C View Figure 27 ); bulb ellipsoidal; embolus longer than cymbium (Fig. 27C, D View Figure 27 ).

Distribution.

Thailand (Songkhla, site 12 in Fig. 33 View Figure 33 ), known only from the type locality.

Kingdom

Animalia

Phylum

Arthropoda

Order

Araneae

Family

Telemidae

Genus

Sundalema