Diphya weimiani J. Zhang & H. Yu, 2022

Zhang, Jianshuang, Zhang, Qi, Long, Feiyang, Yu, Hao & Yi, Yin, 2022, Two new speicies of Diphya Nicolet, 1849 (Araneae, Tetragnathidae) from Southwest China, ZooKeys 1124, pp. 131-145 : 131

publication ID

https://dx.doi.org/10.3897/zookeys.1124.86828

publication LSID

lsid:zoobank.org:pub:04963C99-5599-440F-BA11-8C1F257A9E17

persistent identifier

https://treatment.plazi.org/id/F79B3587-2128-4D61-BA1F-9AD6BA99A094

taxon LSID

lsid:zoobank.org:act:F79B3587-2128-4D61-BA1F-9AD6BA99A094

treatment provided by

ZooKeys by Pensoft

scientific name

Diphya weimiani J. Zhang & H. Yu
status

sp. nov.

Diphya weimiani J. Zhang & H. Yu sp. nov.

Figs 5 View Figure 5 , 6 View Figure 6 , 7 View Figure 7

Material examined.

Holotype. ♀ (MGEU-TET-22-001, YHTET004), CHINA: Sichuan Province: Yaan City: Lushan County, Longmen Town , Longmen Mountain , 30.23°N, 103.02°E, ca 885 m, 14 May 2022, M. Wei leg. GoogleMaps Paratype: 1♀ (MGEU-TET-22-002), Guizhou Province: Qiandongnan Miao and Dong Autonomous Prefecture : Leishan County, Leigong Mountain , 26.38°N, 108.20°E, ca 1965 m, 27 July 2021, Y.C. Lin and M. Wei leg. GoogleMaps

Diagnosis.

The new species is easily distinguished from other congeners except D. albula (Paik, 1983) ( Seo 2005: 49, figs 1, 2), D. macrophthalma Nicolet, 1849 ( Marusik and Omelko 2017b: 25, 26, 30), and D. okumae Tanikawa, 1995 ( Tanikawa 1995: 102, fig. 12; Zhu et al. 2003: 56, fig. 22) by the atrium distinct, and by lack of septum (vs atrium indistinct, divided or covered by septum; septum with variable shapes but distinct in all other Diphya species, such as D. guiyang sp. nov.; Fig. 3A, C, E View Figure 3 ), but differ from the latter three by the atrium located posteriorly (Fig. 5A, C, E View Figure 5 ) (vs located anteriorly), the copulatory ducts strongly entwined (Fig. 5B, D View Figure 5 ) (vs not entwined), and by the receptacles not subdivided (Fig. 5B, D View Figure 5 ) (vs receptacles subdivided in 2 chambers).

Etymology.

The specific name is a patronym after Mian Wei (Chengdu City, China), the collector of the type material.

Description.

Female. Holotype (Figs 5F View Figure 5 , 6A-C View Figure 6 ): total length 3.79; carapace 1.57 long, 1.55 wide; abdomen 2.22 long, 1.55 wide.

Carapace red-brown, marginally slightly darker. Clypeus light orange, distinctly higher than AME diameter. Eye sizes and interdistances: AME 0.08, ALE 0.16, PME 0.15, PLE 0.16, AME-AME 0.06, AME-ALE 0.07, PME-PME 0.12, PME-PLE 0.16, MOQL 0.57, MOQA 0.20, MOQP 0.45. Chelicerae light orange, with 3 promarginal and 4 retromarginal teeth. Sternum coloured as carapace, 0.80 long, 0.68 wide.

Abdomen dorsally uniformly yellowish white, dorsum with two pairs of inconspicuous muscle depressions; laterally with lengthwise reticular pattern; ventrally white with no distinct pattern.

Legs uniformly red-brown. Leg measurements: I 5.58 (1.47, 1.85, 1.46, 0.80), II 5.10 (1.43, 1.65, 1.31, 0.71), III 3.36 (1.03, 1.03, 0.81, 0.49), IV 1.38 (1.44, 1.27, 1.14, 0.53).

Epigyne (Fig. 5A-E View Figure 5 ). Plate distinctly wider than long, with an atrium located posteriorly, receptacles and copulatory ducts indistinctly visible through integument. Atrium (A) shaped like an equilateral triangle, with rebordered margin, about 1/2 epigyne length and 1/3 epigyne width. Lateral pocket (Lp) located anteriorly to atrium, more or less comma-shaped, heavily sclerotized. Copulatory openings (Co) indistinct, located at basolateral atrial borders. Copulatory ducts (Cd) strongly entwined, loop twice before connecting to receptacles. Receptacles (R) oval or balloon-shaped, not subdivided, relatively large, ca 1.3 times longer than wide, surface smooth; two receptacles close together. Fertilization ducts (Fd) acicular, membranous, located on posterior surface of receptacles.

Male. Unknown.

Comments.

According to WSC (2022), only two species of Diphya are known only from males: D. bicolor Vellard, 1926 from Brazil, and D. leroyorum Omelko, Marusik & Lyle, 2020 from South Africa. However, neither could be matched with D. weimiani sp. nov. due to the long distance between their type localities (China is tens of thousands of kilometres from Brazil and South Africa).

Distribution.

Known from the Mount Longmen Mountain (Sichuan Province), and Mount Leigong Mountain (Guizhou Province), China (Fig. 7 View Figure 7 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Tetragnathidae

Genus

Diphya