Research Article |
Corresponding author: Muhammad Irfan ( irfanuos94@yahoo.com ) Corresponding author: Xianjin Peng ( xjpeng@126.com ) Academic editor: Dragomir Dimitrov
© 2021 Guchun Zhou, Muhammad Irfan, Xianjin Peng.
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:
Zhou G, Irfan M, Peng X (2021) A new species of Denisiphantes Tu, Li & Rollard, 2005 (Araneae, Linyphiidae) from Yunnan, China. ZooKeys 1023: 1-12. https://doi.org/10.3897/zookeys.1023.62025
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Denisiphantes arcuatus sp. nov. (♂♀) is described from Yunnan, China. Detailed descriptions of somatic features, genitalic characters, photos of habitus of the new species as well as of copulatory organs of Denisiphantes denisi (Schenkel, 1963) (♂♀) are presented. A distribution map is also provided.
Copulatory organ, Micronetinae, Southeast Asia, sheet-web spiders, taxonomy
Specimens were collected by hand collecting and beating shrubs and were kept in 75% ethanol. After dissection, the epigyna were cleared in trypsin enzyme solution before examination and photography. The left male palps were used for description and illustration. Specimens were examined and measured with a Leica M205C stereomicroscope. Photos were taken with a digital Leica MC170 HD camera mounted on a Leica M205C and were stacked by Helicon Focus software (3.10.). The map (Fig.
AER anterior eye row
ALC anterior projection of lamella characteristica
ALE anterior lateral eye
AME anterior median eye
AME–ALE the distance between AME and ALE
AME–AME the distance between AMEs
ATA anterior terminal apophysis
EG entrance groove
EP embolus proper
MM median membrane
PC paracymbium
PCA proximal cymbial apophysis
PER posterior eye row
PH pit hook on suprategulum
PLE posterior lateral eye
PLC posterior projection of lamella characteristica
PME posterior median eye
PME–PLE distance between PME and PLE
PME–PME distance between PMEs
PMP posterior median plate
PTA posterior terminal apophysis
R radix
S spermatheca
ST subtegulum
T tegulum
TH thumb of embolus
Subfamily Micronetinae Hull, 1920
Genus Denisiphantes Tu, Li & Rollard, 2005
Holotype
: male, China, Yunnan Province, Nujiang Prefecture, Sanjiang Township, Lushui County, Nu Jiang, 25.72964°N, 98.87180°E, alt. 790 m, 26.VI.2000, leg. D. H. Kavanaugh, Charles Griswold & Heng–mei Yan (
This new species resembles Denisiphantes denisi (Schenkel, 1963) in having a similar long ridge-shaped proximal cymbial apophysis of the cymbium in the male palp and a broad scape, almost hexagonal in shape in the epigynum, but can be distinguished by the following characters: (1) Lower margin of distal arm of the paracymbium with a projection, wider than long with a blunt end and covering the posterior margin of the tibia in retrolateral view in the new species (Figs
Male (holotype,
Female (paratype
Known only from the type locality in Yunnan, China (Fig.
Lepthyphantes denisi Schenkel, 1963: 118, fig. 70a–c.
Lepthyphantes denisi Zhu & Li, 1983: 146, fig. 3d–f.
Lepthyphantes denisi Hu, 2001: 503, fig. 334.1–4.
Denisiphantes denisi Tu, Li & Rollard, 2005: 652, figs 11–25.
Denisiphantes denisi Tanasevitch, 2006: 303, figs 76, 77.
3♂3♀, China, Yunnan Province, Tengchong County, Beihai Township, 15.2 km NE of Tengchong at Qinghai (lake), 25.13408°N, 98.57144°E, alt. 1842 m, 07 June 2006, D. H. Kavanaugh, R. L. Brett & Da–zhi Dong (
Denisiphantes was described as a monotypic genus based on the material collected from Qinghai and also reported from Gansu and Guizhou. The new species described here is reported from Yunnan. Considering the vast distribution of the type species (Fig.
We are grateful to Charles Griswold, Heng-mei Yan, D. H. Kavanaugh, R. L. Brett and Da-zhi Dong for collecting the specimens. We are also thankful to Dr Stephanie F. Loria (American Museum of Natural History, New York) for reviewing the English of manuscript. We are grateful to Dragomir Dimitrov (University of Barcelona, Barcelona, Spain), Nadine Duperre (University of Hamburg, Hamburg, Germany) and the two anonymous reviewers for their high quality and constructive reviews. This research was sponsored by the National Science Foundation, U.S.A. through the California Academy of Sciences (CAS) in the grant “Biotic survey of the Gaoligongshan, a biodiversity hotspot in western Yunnan, China” (No. DEB-0103795). It is also partly supported by the National Natural Sciences Foundation of China (NSFC-30970327, 31272271, 31272272, 31301861), National Special Fund on Basic Research of Science and Technology of China (No. 2014FY110100), Hunan Provincial Natural Science Foundation of China (No.11JJ1004/12JJ3028), Program for New Century Excellent Talents in University (NCET-12-0717), China Postdoctoral Science Foundation (No. 20100471221/201104506), the program of Hunan Provincial Science and Technology Plans (No. 2010RS4006), and by the Hunan Provincial Program for Development of Key Disciplines in Ecology [grant number No. 0731].