Latouchia yejiei Zhang & Wang, 2021

Zhang, Shu-Yuan & Wang, Cheng-Bin, 2021, Two new species of the genus Latouchia Pocock, 1901 from southeast China (Araneae: Mygalomorphae: Halonoproctidae), Biodiversity Data Journal 9, pp. 72456-72456 : 72456

publication ID

https://dx.doi.org/10.3897/BDJ.9.e72456

publication LSID

lsid:zoobank.org:pub:19C426DA-32F2-455F-94BB-CE1E2CB3A1A7

persistent identifier

https://treatment.plazi.org/id/BCD8D8D7-9FF9-4802-B7F6-4C73C1D2BD13

taxon LSID

lsid:zoobank.org:act:BCD8D8D7-9FF9-4802-B7F6-4C73C1D2BD13

treatment provided by

Biodiversity Data Journal by Pensoft

scientific name

Latouchia yejiei Zhang & Wang, 2021
status

sp. n.

Latouchia yejiei Zhang & Wang, 2021 sp. n.

Materials

Type status: Holotype. Occurrence: recordedBy: Lin-Jie Gong ; individualCount: 1; sex: male; Location : country: CHINA; stateProvince: Hainan; verbatimLocality: Ledong Li Autonomous County, Jianfengling National Nature Reserve , Road of Tianchi to Mingfenggu ; verbatimElevation: 818 m; verbatimLatitude: 27.7406°N; verbatimLongitude: 117.6460°E; Event: year: 2018; month: 11; day: 23; Record Level: institutionCode: MYNU Type status: Paratype. Occurrence: recordedBy: Shu-Yuan Zhang; Zhe-Wen Ding; sex: 1 female; Location: country: CHINA; stateProvince: Hainan; verbatimLocality: Ledong Li Autonomous County, Jianfengling National Nature Reserve , Road of Tianchi to Mingfenggu ; Event : year: 2020; month: 6; day: 30; Record Level : institutionCode: MYNU GoogleMaps GoogleMaps

Description

Male (Fig. 5 View Figure 5 A, B). Holotype (Ar.-MYNU-HNLD0001). Total length 17.24 (not including chelicerae), chelicerae 4.58 long. Carapace 8.84 long and 8.25 wide, reddish-black in ethanol; rim of carapace black and with a slight ridge; fovea U-shaped, without any modification posteriorly; caput slightly raised, with numerous transverse grooves between ocular tubercle and fovea. Eyes in two rows, anterior row procurved; eye sizes and interdistances: AME 0.31, ALE 0.46, PME 0.32, PLE 0.47, AME-AME 0.20, ALE-ALE 0.76, AME-ALE 0.14, PME-PME 0.61, PME-PLE 0.07, ALE-PLE 0.27. Chelicerae reddish-black, rastellum formed by 10-12 stout spines on tubercle. Labium 1.29 long and 1.94 wide, without cuspules. Maxillae 3.32 long and 2.01 wide, without cuspules. Sternum 5.24 long and 4.71 wide, reddish-brown, with large sigilla centrally. Opisthosoma 8.41 long and 5.27 wide, dorsally yellowish-grey, without obvious pattern. Leg measurements: leg I 28.34 (8.17, 3.40, 7.28, 6.27, 3.22), leg II 26.19 (7.38, 3.26, 6.57, 5.94, 3.04), leg III 21.46 (4.64, 2.73, 4.24, 6.09, 3.76), leg IV 33.05 (8.47, 3.92, 7.99, 7.91, 4.76). Scopulae present on tarsi I-II and distal metatarsi I-II. Spines on anterior legs straight, some of them slightly hooked.

Palp (Fig. 6 View Figure 6 A-D). Tibia relatively slender, with numerous bristles ventrally; without spines. Embolus not obviously curved, with a median triangular apophysis proventrally.

Female (Fig. 5 View Figure 5 C-E). Paratype (Ar.-MYNU-HNLD0002). Total length 34.02 (not including chelicerae), chelicerae 5.03 long. Carapace 14.83 long and 12.90 wide, reddish-brown in ethanol (slightly darker when alive); fovea U-shaped; caput obviously raised. Eyes in two rows on tubercle, anterior row slightly procurved. Eye sizes and interdistances: AME 0.43, ALE 0.52, PME 0.46, PLE 0.48, AME-AME 0.27, ALE-ALE 0.41, AME-ALE 0.12, PME-PME 1.13, PME-PLE 0.09, ALE-PLE 0.41. Chelicerae robust; rastellum formed by ca. 15 stout spines on tubercle. Labium 2.73 long and 2.87 wide, with 7 cuspules. Sternum 8.22 long and 8.23 wide, reddish-brown, with large sigilla centrally. Opisthosoma 19.17 long and 13.31 wide, pattern as in male. Leg measurements: leg I 29.16 (10.20, 5.53, 6.89, 4.30, 2.24), leg II 24.40 (8.70, 4.19, 4.93, 4.58, 2.00), leg III 21.81 (7.64, 3.81, 3.79, 3.95, 2.62), leg IV 33.49 (10.30, 6.00, 6.52, 6.88, 3.79). Femora I-IV and patellae I-II without spines; most spines of anterior legs hooked.

Vulva (Fig. 7 View Figure 7 ). Spermathecae outward-tilted, not bulbous, with numerous glandular pores; stalks almost 1.5 times as wide as spermathecae.

Diagnosis

The female of Latouchia yejiei sp. n. resembles L. bachmaensis Ono, 2010, but it can be distinguished by the spermathecae being not bulbous; the stalks being broad, almost 1.5 times as wide as the spermathecae (vs. spermathecae slightly bulbous and stalks almost equal to spermathecae in L. bachmaensis ). The male of the new species can be distinguished from other known male congeners by a triangular apophysis present on embolus proventrally (Fig. 6 View Figure 6 D) (It is not a triangular apophysis in Latouchia formosensis smithi Tso, Haupt & Zhu, 2003, only a ridge proventrally).

Etymology

The specific name is given in honour of Mr. Ye-Jie Lin, who gave great help to this study. This noun is in genitive case and masculine singular.

Distribution

China (Hainan).

Field observations

Habitat, living female and burrow as shown in Fig. 8 View Figure 8 .

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Halonoproctidae

Genus

Latouchia