Biodiversity Data Journal :
Taxonomic Paper
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Corresponding author: Cheng-Bin Wang (entomologist@qq.com)
Academic editor: Stuart Longhorn
Received: 01 Aug 2021 | Accepted: 04 Dec 2021 | Published: 07 Dec 2021
© 2021 Shu-Yuan Zhang, Cheng-Bin Wang
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Zhang S-Y, Wang C-B (2021) Two new species of the genus Latouchia Pocock, 1901 from southeast China (Araneae: Mygalomorphae: Halonoproctidae). Biodiversity Data Journal 9: e72456. https://doi.org/10.3897/BDJ.9.e72456
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The genus Latouchia Pocock, 1901 (Araneae: Mygalomorphae: Halonoproctidae: Ummidiinae) includes 21 species and 1 subspecies occurring in southeast Eurasia. Just like other trapdoor spiders, the specimens of Latouchia are rare in collections, unless from targeted collecting.
Two new species of mygalomorph spiders, Latouchia rufa sp. n. from Guangdong, China and L. yejiei sp. n. from Hainan, China, are described and illustrated from both sexes. Diagnostic characters of the two species are provided.
mygalomorph spider, Ummidiinae, Latouchia, taxonomy, Oriental Region
Spiders of the genus Latouchia Pocock, 1901 (Araneae: Mygalomorphae: Halonoproctidae: Ummidiinae) are typical trapdoor-burrow dwellers. Recently, Latouchia was transferred from Ctenizidae to Halonoproctidae and it was considered as the sister group of Conothele + Ummidia clade (
Specimens examined for this study were collected by excavation or by using pitfall traps. All specimens were preserved in 75%–100% ethanol and female genitalia were cleared with trypsase. Measurements were taken using a Leica M205A stereomicroscope in millimetres. The measurements of legs are shown as: total length (femur, patella, tibia, metatarsus and tarsus). Photographs were taken using the Leica M205A stereomicroscope, equipped with a DFC 550 CCD camera. The holotypes and paratypes are deposited in the insect collection of Mianyang Normal University, Mianyang, China (MYNU).
Abbreviations used in this paper: ALE, anterior lateral eyes; AME, anterior median eyes; PLE, posterior lateral eyes; PME, posterior median eyes.
Male (Fig.
Palp (Fig.
Female (Fig.
Vulva (Fig.
The male of this new species is similar to Latouchia formosensis Kayashima, 1943 in general appearance, but it is distinguishable from the latter by the medially-curved embolus and the absence of a spine band on retrolateral side of palpal tibia (Fig.
The new species also resembles Latouchia formosensis smithi Tso, Haupt & Zhu, 2003 in the shape of terminal embolus (Fig.
The specific name is Latin, means red, referring to the coloration of females. This adjective is in nominative case and feminine.
China (Guangdong).
Male (Fig.
Palp (Fig.
Female (Fig.
Vulva (Fig.
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.
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.
China (Hainan).
We would like to express our sincere gratitude to Mr. Ju Zhang, Mr. Bo Su and Mrs. Lin-Jie Gong for their assistance with fieldwork. We thank Mr. Kun Yu and Mrs. Jia-Xuan Li for linguistic revision of the text. We are grateful to Dr. Arthur E. Decae, Dr. Rebecca Godwin, Dr. Stuart Longhorn and Dr. Sergei Zonstein who provided constructive comments on an earlier version of the manuscript. This study was supported by the Natural Science Foundation of Huaguoshan (NSFH-2021).