Macrothele hanfeii Lin & Li, 2021

Lin, Yejie, Yan, Xunyou, Li, Shuqiang, Ballarin, Francesco & Chen, Haifeng, 2021, Five new species of Macrothele Ausserer, 1871 from China (Araneae, Macrothelidae), ZooKeys 1052, pp. 1-23 : 1

Macrothele hanfeii Lin & Li sp. nov.

Figures 4 , 5 , 6 , 13F , 14F , 16

Type material.

Holotype: 1♂ (IZCAS-Ar41857) China, Hainan Province, Ledong Li Autonomous County, Jianfengling National Park, Mingfeng Valley, 18.7417°N, 108.8416°E, elevation ca 980 m, 21.IV.2018, Yejie Lin & Jiaxiang Wu leg. Paratypes: 1♀ (IZCAS-Ar41858), same data as holotype; 3♀ (IZCAS-Ar41859-Ar41861), same data as holotype but 23.XI.2020, Yunhu Mo leg.

Etymology.

The species epithet refers to Mr Hanfei Gao who helped with this research; noun (name) in genitive case.

Diagnosis.

Male of Macrothele hanfeii sp. nov. resemble those of M. holsti Pocock, 1901 and M. multispine Wang, Li & Yang, 2019 by having similar bulb shape. Females of M. hanfeii sp. nov. resemble the aforementioned species by the apically globose receptacula that bend inwards. Male of M. hanfeii sp. nov. can be distinguished from M. holsti and M. multispine in that the palpal tibia bear seven blunt spines in prolateral view and nine in dorsal view that extend onto the patella and a large spine present in the center of the area with blunt spines (vs 14 blunt spines in prolateral view and 13 in dorsal view in M. holsti , and three blunt spines in prolateral view and one in dorsal view in M. multispine ; large spine absent in M. holsti and M. multispine , and in M. multispine , the blunt spines are absent on the patella). Females differ from those of M. holsti and M. multispine by the short, robust copulatory ducts and the receptacula apically teardrop shaped (vs copulatory ducts long and thin and receptacula apically oval in M. holsti and M. multispine ).

Description.

Male (holotype) (Figs 4A , 5 , 6B, C , 13F , 14F ): total length 20.03, carapace 8.02 long, 7.13 wide; opisthosoma 14.01 long, 5.12 wide. Carapace dark brown, glabrous, covered with short setae, middle of cephalic region with row of setae. Fovea deep, round. AER slightly procurved, PER recurved. Eye sizes and interdistances: AME 0.35, ALE 0.46, PME 0.31, PLE 0.32; AME-AME 0.15, ALE-AME 0.11, ALE-PLE 0.12, PLE-PME 0.05, PME-PME 0.31. Cheliceral promargin with 13 stout teeth, basomesally with 19 denticles. Labium brown, with ca 33 cuspules; sternum chestnut, with three pairs of sigillae. Legs dark brown. Leg measurements: I 21.75 (6.52 + 7.01 + 5.13 + 3.10), II 22.88 (6.02 + 7.11 + 5.24 + 4.51), III 23.55 (6.51 + 7.92 + 5.01 + 4.11), IV 30.21 (8.11 + 9.10 + 8.00 + 5.00). Leg formula: 4321. Abdomen dark brown, hairy. Spinnerets: PMS one segment, 1.76 long, 0.48 wide, PMS-PMS 1.36; PLS three segments. PLS 3.94 long (3.19, 3.56, 4.50).

Male palp (Figs 5 , 13F , 14F ). Maxillae with ca 70 cuspules. Palpal trochanter without lyral spines. Patella with eight blunt spines, tibia with blunt spines, seven in prolateral view and nine in dorsal view. Bulb nearly globose; embolus slightly curved and needle-shaped.

Female (Figs 4B , 6A, D, E ): total length 17.20, carapace 7.62 long, 8.52 wide; opisthosoma 12.21 long, 8.11 wide. Eye sizes and interdistances: AME 0.22, ALE 0.43, PME 0.38, PLE 0.40; AME-AME 0.15, ALE-AME 0.09, ALE-PLE 0.05, PME-PME 0.58, PLE-PME 0.05. Cheliceral promargin with 15 stout teeth, basomesally with 31 denticles. Palpal trochanter without lyral spines. Endites brown, labium with ca 32 cuspules. Leg measurements: I 17.76 (5.02 + 6.51 + 4.13 + 3.10), II 20.04 (6.20 + 7.10 + 3.74 + 3.00), III 21.26 (6.10 + 6.92 + 5.03 + 3.21), IV 25.37 (7.11 + 8.21 + 6.13 + 3.92). Leg formula: 4321. Abdomen dark brown, hairy. Spinnerets: PMS one segment, 2.18 long, 0.53 wide, PMS-PMS 2.38; PLS three segments. PLS 11.60 long (3.52, 3.76, 4.32).

Female genitalia (Fig. 6A ) simple. Receptacula apically teardrop shaped, copulatory ducts short and robust, the ratio of the length of the receptacula apically to the length of the copulatory ducts is almost 1:2.

Variation.

Female total length 17.20-22.52 (n = 4).

Distribution.

China (Hainan).

Figures

Figure 4. Live Macrothele hanfeii sp. nov., paratypes A male B female.

Figure 5. Macrothele hanfeii sp. nov., left palp, holotype A prolateral view B retrolateral view.

Figure 6. Macrothele hanfeii sp. nov., female genitalia, male holotype, and female paratype A female genitalia, ventral view B male habitus, dorsal view C male habitus, ventral view D female habitus, dorsal view E female habitus, ventral view. Abbreviations: CD copulatory ducts, T terminus of receptacula.

Figure 13. Prolateral view of embolic tips of six species of Macrothele A M. emei sp. nov. B M. limenghuai sp. nov. C M. nanning sp. nov. D M. gigas E M. hungae sp. nov. F M. hanfeii sp. nov.

Figure 14. Retrolateral view of embolic tips of six species of Macrothele A M. emei sp. nov. B M. limenghuai sp. nov. C M. nanning sp. nov. D M. gigas E M. hungae sp. nov. F M. hanfeii sp. nov.

Figure 16. Distribution records of Macrothele species in East Asia 1 M. yani 2 M. arcuata 3 M. jingzhao 4 M. yunlingensis 5 M. undata 6 M. cangshanensis 7 M. yongshengensis 8 M. jinlin 9 M. bannaensis 10 M. yunnanica 11 M. menglunensis 12 M. multispine 13 M. limenghuai sp. nov. 14 M. emei sp. nov. 15 M. sanheensis 16 M. decemnotata 17 M. proserpina 18 M. monocirculata 19 M. raveni 20 M. guizhouensis 21 M. digitata 22 M. nanning sp. nov. 23 M. hanfeii sp. nov. 24 M. hunanica 25 M. hungae sp. nov. 26 M. holsti 27 M. palpator 28 M. taiwanensis 29 M. simplicata 30 M. yaginumai 31 M. gigas.