Piranthus maddisoni Wang, Mi, Li & Xu, 2024, sp. nov.
Creators: name: Wang, Cheng
name: Mi, Xiaoqi
name: Li, Shuqiang
name: Xu, Xiang
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Salticidae
Piranthus
Piranthus maddisoni

description: Piranthus maddisoni sp. nov.
Figs 23, 24, 47
Type material.
Holotype ♂ (TRU - JS 0769), China: • Hainan Province, Changjiang Li Autonomous County, Bawangling National Nature Reserve (19°7.12'N, 109°9.34'E, ca 640 m), 24. IV. 2021, F. E. Li leg. Paratype • 1 ♀ (IZCAS - Ar 45283), Lingshui County, Diaoluoshan (18°40.22'N, 109°53.67'E, ca 260 m), 14. IV. 2009, G. Tang leg.
Etymology.
The specific name is a patronym in honor of Prof. Wayne P. Maddison (Vancouver, Canada), the leading specialist in jumping spiders, who has made significant contributions to the taxonomy of salticids worldwide; noun (name) in the genitive case.
Diagnosis.
Piranthus maddisoni sp. nov. resembles that of P. bakau Maddison, 2020 in having similar habitus, pattern, and palpal structure, but differs in: 1) retrolateral tibial apophysis (RTA) not broadened at base, and forming an incision at distal end in retrolateral view (Fig. 23 C) vs broadened into a dorsal prominent portion and lacking similar incision (Maddison et al. 2020: fig. 239); 2) presence of a well-developed anterior tegular lobe (AL) (Fig. 23 B) vs indistinct (Maddison et al. 2020: fig. 238); 3) base of septum (Se) <1 / 4 of epigynal width (Fig. 24 A) vs ~ 1 / 3 of epigynal width (Maddison et al. 2020: fig. 240).
Description.
Male (Figs 23, 24 D, E, G – I). Total length 6.10. Carapace 2.78 long, 2.15 wide. Abdomen 3.27 long, 1.61 wide. Eye sizes and interdistances: AME 0.55, ALE 0.26, PLE 0.26, AERW 1.51, PERW 1.59, EFL 1.12. Legs: I 5.25 (1.75, 1.00, 1.25, 0.75, 0.50), II 4.51 (1.38, 0.90, 1.10, 0.68, 0.45), III 3.76 (1.13, 0.70, 0.70, 0.80, 0.43), IV 5.04 (1.58, 0.75, 1.18, 1.08, 0.45). Carapace almost oval, dark, and covered with dense white setae. Chelicerae red-brown, with three promarginal and five retromarginal teeth. Legs I and II yellow except thickness femora, patellae, and tibiae dark brown, bearing pale setae on patellae and tibiae I. Dorsum of abdomen with two pairs of muscle depressions, pair of transverse, pale setal stripes followed by big transverse pale grey band medially, covered by anterior scutum ~ 1 / 3 abdominal length; venter colored as dorsum, with pair of oval postero-lateral pale spots and median dotted lines.
Palp (Fig. 23 A – C): femur length / width ratio ca 2.5; patella ~ 1.4 × longer than wide in retrolateral view; tibia slightly longer than wide, with sub-triangular disto-prolateral apophysis (PTA) and blade-shaped retrolateral apophysis (RTA) longer than tibia, slightly curved at proximal 1 / 3, and forming shallow incision at distal end; cymbium pale,> 1.5 × longer than wide; tegulum elongate-oval, swollen medio-posteriorly, with lamellar, anteriorly extended antero-marginal sub-triangular lobe (AL); embolus (E) arising at baso-prolateral corner of tegulum, with broad base extended anticlockwise, and then acutely narrowed into flagelliform portion.
Female (Fig. 24 A – C, F). Total length 8.34. Carapace 3.47 long, 2.53 wide. Abdomen 4.53 long, 2.20 wide. Eye sizes and interdistances: AME 0.43, ALE 0.26, PLE 0.26, AERW 1.48, PERW 1.60, EFL 1.05. Legs: I 4.89 (1.65, 1.03, 1.08, 0.63, 0.50), II 4.83 (1.50, 1.05, 1.15, 0.68, 0.45), III 4.24 (1.30, 0.80, 0.78, 0.93, 0.43), IV 6.00 (1.80, 1.00, 1.40, 1.30, 0.50). Habitus (Fig. 24 F) similar to that of male except paler and without dorsal abdominal scutum.
Epigyne (Fig. 24 A – C) ~ 1.2 × wider than long; atrium (At) almost oval, separated by basally broadened septum (Se); copulatory openings (CO) anteriorly located, partly visible; copulatory ducts (CD) long, broadened and flat proximally, and then forming complicated coils; spermathecae (S) spherical, separated from each other ~ 2 × their diameter.
Distribution.
Known only from the type locality in Hainan, China (Fig. 47).
Comments.
Although the male and female were collected in different places, they share consistent habitus, and pattern and thus they are considered to be conspecific, but this may need further confirmation.
description: Published as part of Wang, Cheng, Mi, Xiaoqi, Li, Shuqiang & Xu, Xiang, 2024, Taxonomic notes of jumping spiders (Araneae, Salticidae) from Guangxi, Hainan, Sichuan, Xizang and Yunnan, China, pp. 205-277 in ZooKeys 1221 on pages 205-277, DOI: 10.3897/zookeys.1221.135640