Macrothele hungae Lin & Li sp. nov.

Figures 7, 8, 13E, 14E, 15B, F, 16

Macrothele gigas Haupt, 2008: 20, fig. 4B (♀, misidentified).

Type material.

Holotype: 1♂ (IZCAS-Ar41862) China, Taiwan, Kenting National Forest Recreation Area, Pingtung County, Kenting, 27.VI. 2013, Yanzhou Tong leg. Paratypes: 3♀ (IZCAS-Ar41863-Ar41865), same data as holotype.

Species studied for comparison.

Macrothele gigas Shimojana & Haupt, 1998: 3♂, Japan, Ishigaki Island, Yarabudake, 24.4405°N, 124.0874°E, 10.IV.2019, Sibagarasu Kurosaki leg.; 3♀, same data as male but 8.IX.2019.

Etymology.

The specific epithet is dedicated to Ms Hung Hsiu-chu, the first elected chairwoman of the Kuomintang in Taiwan, China; noun (name) in genitive case.

Diagnosis.

Macrothele hungae sp. nov. resembles M. gigas (Figs 13D, 14D, 15C, D) by the large size, the needle-shaped embolus of the male, and the apically globose receptacula and the S-shaped copulatory ducts of the female. Male of M. hungae sp. nov. can be distinguished from those of M. gigas by three rows of 22-25 lyral spines on the maxillae, palpal tibia with six spines in prolateral view, and embolic base expansion begins at one of the apical thirds of the bulb (vs 11 lyral spines in two rows, tibia with 1 or 2 spines in prolateral view, expansion of embolic base begins at the halfway point of the bulb). Females can be differentiated from those of M. gigas by having the base of copulatory ducts as wide as the receptacula and the receptacula apically oval (vs the ratio of the width of the base of copulatory ducts to the width of the terminus almost 2:3, and the receptacula apically teardrop shaped in M. gigas).

Description.

Male (holotype) (Figs 7, 8B, C, 13E, 14E, 15B, F): total length 25.63, carapace 13.22 long, 12.23 wide; opisthosoma 15.89 long, 9.89 wide. Carapace dark brown, covered with short setae, middle of cephalic region with a row of setae. Fovea deep, round. AER slightly procurved, PER recurved. Eye sizes and interdistances: AME 0.50, ALE 0.76, PME 0.41, PLE 0.48; AME-AME 0.25, ALE-AME 0.12, ALE-PLE 0.16, PLE-PME 0.07, PME-PME 0.88. Chelicerae red, promargin with 14 stout teeth, basomesally with 22 denticles. Labium brown, with ca 104 cuspules; sternum chestnut, with three pairs of sigillae. Legs dark brown. Leg measurements: I 43.07 (10.11 + 15.83 + 10.20 + 6.93), II 48.44 (12.22 + 16.61 + 11.10 + 8.51), III 41.44 (10.31 + 14.00 + 10.91 + 6.22), IV 61.05 (17.52 + 17.11 + 19.20 + 7.22). Leg formula: 4213. Abdomen dark brown, hairy. Spinnerets: PMS one segment, 3.12 long, 0.67 wide, PMS-PMS 1.55; PLS three segments. PLS 14.10 long (4.30, 4.70, 5.10).

Male palp (Figs 7, 13E, 14E). Maxillae with ca 115 cuspules. Palpal trochanter with 25 lyral spines. Tibia with six spines. Bulb nearly globose; embolus needle shaped, expanded at the base.

Female (Fig. 8A, D, E): total length 40.81, carapace 18.22 long, 16.52 wide; opisthosoma 22.61 long, 13.13 wide. AER slightly procurved, PER recurved. Eye sizes and interdistances: AME 0.52, ALE 0.93, PME 0.72, PLE 0.58; AME-AME 0.31, ALE-AME 0.20, ALE-PLE 0.12, PME-PME 1.16, PLE-PME 0.13. Cheliceral promargin with 11 stout teeth, basomesally with 28 denticles. Endites brown, labium with ca 118 cuspules. Leg measurements: I 59.54 (16.21 + 22.74 + 12.30 + 8.29), II 61.97 (16.40 + 22.21 + 14.93 + 8.43), III 54.81 (13.50 + 20.12 + 14.32 + 6.87), IV 66.02 (17.14 + 22.13 + 18.83 + 7.92). Leg formula: 4213. Abdomen dark brown, hairy. Spinnerets: PMS one segment, 5.12 long, 0.91 wide, PMS-PMS 4.42; PLS three segments. PLS 22.29 long (7.35, 7.51, 7.43).

Female genitalia (Fig. 8A) simple. Receptacula apically oval; copulatory duct narrow, S-shaped; width of the base of the copulatory ducts and the width of the terminus are nearly equal.

Variation.

Female total length 40.81-51.40 (n = 3).

Distribution.

China (Taiwan).