Thaiderces ganlan Li & Chang sp. nov. Figs 1H, 2E, 7, 8, 28E, 29

Types.

Holotype: ♂ (IZCAS), Myanmar, Chin State, roadside between Kampellet to Nat Ma Taung National Park, 21°13.436'N, 93°58.819'E, 2402 m, 1.V.2017, Wu J. and Chen Z. Paratype: 1♀ (IZCAS), same data as holotype.

Etymology.

The species name is a noun in apposition derived from the Chinese pinyin gănlăn (olive) and refers to the structure of the bulb that resembles an olive or a rugby ball (Fig. 8A).

Diagnosis.

Diagnostic features of males are discussed under T. peterjaegeri sp. nov. Females of T. ganlan sp. nov. can be distinguished by a pair of twisted ribbon-liked spermathecae, with globular distal ends two times wider than stalk (vs. spermathecae with globular heads three times wider than stalk in T. tuoyuan sp. nov., Fig. 6A).

Description.

Male (holotype). Total length 1.63; carapace 0.63 long, 0.63 wide; abdomen 1.00 long, 0.75 wide. Carapace round and brown with 3 longitudinal brown bands, lateral bands three times wider than the median band (Fig. 7C). Chelicerae brown (Fig. 28E). Clypeus dark brown medially and light brown laterally. Endites light brown. Labium dark brown. Sternum with dark brown pattern. Abdomen brown and elongated, dorsum with complex yellow dotted patterns, anteroventrally brown with pair of dark brown circular patches followed by a light brown elliptical patch, posterior part with a pair of yellow dotted lines laterally and a V-shaped mark medially. Legs uniformly brown; measurements: I 5.23 (1.40, 0.20, 1.60, 1.25, 0.78), II 4.99 (1.09, 0.15, 1.41, 1.25, 1.09), III 3.54 (0.94, 0.25, 0.90, 0.90, 0.55), IV 4.80 (1.20, 0.20. 1.40, 1.25, 0.75). Palp with scattered purplish spots (Fig. 8C, D): femur three times longer than patella; patella not swollen, tibia 2/3 the length of femur; cymbium dark with concentrated purplish spots, half the length of femur; bulb light yellow and elliptical, with a distinct protrusion arising distally, adjacent to embolus; embolus thick and branched, arising distally, almost equal in length to the entire bulb (Fig. 8A).

Female (Paratype). General features and coloration similar to that of male (Fig. 7D, E). Measurements: total length 2.03; carapace 0.78 long, 0.75 wide; abdomen 1.25 long, 0.94 wide. Leg measurements: I 5.23 (1.28, 0.32, 1.60, 1.25, 0.78), II 4.84 (1.28, 0.32, 1.40, 1.09, 0.75), III missing, IV 5.61 (1.44, 0.32, 1.60, 1.50, 0.75). Endogyne with a pair of twisted ribbon-liked spermathecae with long stalks and globular heads, heads 2 times wider than stalks, stalks almost equal to the interdistance of stalk bases (Fig. 7A).

Distribution.

Known only from the type locality (Fig. 29).