Research Article |
Corresponding author: Junxia Zhang ( jxzhang1976@163.com ) Academic editor: Shuqiang Li
© 2024 Zhiyong Yang, Quang Duy Hoang, Weihang Wang, Wayne P. Maddison, Junxia Zhang.
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:
Yang Z, Hoang QD, Wang W, Maddison WP, Zhang J (2024) On the enigmatic jumping spider genus Ogdenia Peckham, 1908 (Araneae, Salticidae, Chrysillini). ZooKeys 1202: 155-168. https://doi.org/10.3897/zookeys.1202.124199
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The monotypic genus Ogdenia Peckham, 1908, is redefined based on the redescription of the holotype of O. mutilla (Peckham & Peckham, 1907), along with the newly discovered male specimens and intraspecific variation from China, Malaysia, Singapore, and Vietnam. Description, illustrations, and photographs are provided.
Chrysillini, Ogdenia mutilla, redescription, Southeast Asia
In 1907, G.W. Peckham and E.G. Peckham established the monotypic genus Rooseveltia with the type species Rooseveltia mutilla Peckham & Peckham, 1907, based on a single female holotype from Borneo, Kuching, Malaysia (
Herein, we redescribe O. mutilla and provide photographs of the habitus and epigyne of the holotype specimen. In addition, we document the male for the first time. Furthermore, intraspecific variation based on specimens from China, Malaysia, Singapore, and Vietnam is presented.
Specimens preserved in 75% or 95% ethanol were examined and measured under a Leica M205A stereomicroscope. All measurements are in millimetres using the associated Leica LAS v. 4.3 software. Photographs of living specimens were captured using a Canon 80D camera equipped with a Laowa 100 mm f/2.8 macro 2× lens and a KR-888 flash, a Sony ILCE-7RM2 camera with a Laowa 90 mm f/2.8 macro 2× lens and a KR-808 flash, and a Nikon D7200 camera with an AF-S DX Macro Nikkor 40 mm f/2.8G lens and a KR-888 flash. Ethanol-immersed body and genitalia photos were taken by a Kuy Nice CCD camera mounted on an Olympus BX53 microscope and then stacked by the Helicon Focus v. 7 software. Final photographs were retouched in Adobe Photoshop CC 2021. The male palp was macerated in clove oil to observe the trajectory of the spermophor, while the female vulva was cleaned with pancreatin. The holotype specimen is preserved in the Museum of Comparative Zoology, Harvard University, USA (
Abbreviations used: AG, accessory gland; ALE, anterior lateral eye; AME, anterior median eye; BH, basal haematodocha; C, cymbium; CD, copulatory duct; CO, copulatory opening; E, embolus; FD, fertilization duct; IZ, Invertebrate Zoology; PL, posterior tegular lobe; PLE, posterior lateral eye; PME, posterior median eye; RTA, retrolateral tibial apophysis; S, spermatheca; SM, spermophor; TB, tegular bump; XTBG, Xishuangbanna Tropical Botanical Garden.
Rooseveltia Peckham & Peckham, 1907: 614; type species: Rooseveltia mutilla Peckham & Peckham, 1907, by original designation and monotypy.
Ogdenia Peckham, 1908: 171 (generic replacement name).
The genus closely resembles Siler Simon, 1889, but can be distinguished by: (1) the larger body size (6–10 mm); (2) the male femur I with only sparse setae (Figs
Medium-sized spiders (total length 6.51–8.00 in males, 7.98–10.00 in females). Body dark with pale yellow patches, covered with dense scales (Figs
China (Yunnan), Malaysia (Borneo, Johor, and Sarawak), Singapore (Bukit Timah Nature Reserve), Vietnam (Dak Lak).
Rooseveltia mutilla
Peckham & Peckham, 1907: 614;
Ogdenia mutilla: Peckham, 1908: 171;
Holotype
: Malaysia • ♀; Borneo, Kuching; 1 Jan. 1897; R. Shelford & Peckham leg.;
China – Yunnan Province • 7♂♂ 2♀♀; Xishuangbanna Dai Autonomous Prefecture, Mengla County, Menglun Town, XTBG; 21.9080°N, 101.2845°E, 669 m a.s.l.; 21 Apr. 2023; W. Wang & Z. Yang leg.; MHBU-ARA-00025193, 00025196, 00026514–00026517 • 1♀; same collection data as for preceding; 21.9077°N, 101.2824°E, 677 m a.s.l.; 17 Dec. 2022; W. Wang, B. Liu & Z. Yang leg.; MHBU-ARA-00025194 • 2♀♀; same collection data as for preceding; 21.9108°N, 101.2833°E, 669 m a.s.l.; 2 Aug. 2021; J. Zhang, Y. Mu, K. Yu, L. Zhang & W. Wang leg.; MHBU-ARA-00022704, 00022804 • 1♀; same collection data as for preceding; 21.9092°N, 101.2805°E, 605 m a.s.l.; 12 Jul. 2018; C. Jin & C. Zhang leg.; MHBU-ARA-00020807 • 1♂; Xishuangbanna Dai Autonomous Prefecture, Mengla County, Wangtianshu scenic area; 21.6223°N, 101.5892°E, 700 m a.s.l.; 23 Apr. 2023; L. Wang & Q. Lu leg.; MHBU-ARA-00025195.
Malaysia – 1♂; Johor, Gunung Belemut Forest, Lata Tengkorak; 2.0550°N, 103.5430°E, 250 m a.s.l.;16 Jun. 2019; W.P. Maddison, N.I. Morehouse et al. leg.;
Singapore – 1♀; Bukit Timah Nature Reserve, South Jungle Falls Path; 1.3551°N, 103.7739°E, 150 m a.s.l.; 5 Jun. 2019; W.P. Maddison leg.;
Vietnam – Dak Lak Province • 1♂; Buon Don District, Yok Don National Park; 12.8641°N, 107.7961°E, 180 m a.s.l.; 24 Apr. 2022; Q.D. Hoang leg.; TNU • 1♀ Krong Bong District, Chu Yang Sin National Park; 12.4796°N, 108.3391°E, 430 m a.s.l.; 14 May 2022; Q.D. Hoang leg.; TNU.
See the diagnosis of the genus.
Male. Habitus as shown in Figs
Palp (Figs
Female. Habitus as shown in Figs
Ogdenia mutilla (Peckham & Peckham, 1907), male (A, B, E–M, O–R) and female (C, D, N, S–U) from China A–D habitus, dorsal (A, C) and lateral (B, D) views E–L claws I (G, J), II (H, K), III (I, L), IV (E, F), prolateral (F–I) and retrolateral (E, J–L) views M, N prosomas O left leg I, front view P, Q, T, U chelicerae, front (P, T) and prolateral (Q, U) views R, S teeth of chelicerae, back views.
Epigyne (Figs
The transition from the base of the embolus to the tegulum is smoother in some specimens (Figs
Specimens were discovered on the surface of leaf litter or in shrubs within tropical forests (Fig.
China, Malaysia, Singapore, and Vietnam.
We thank Dr Gonazalo Giribet, Laura Leibensperger, Shahan Derkarabetian and Adam Baldinger for assistance with the loan of the type specimen of O. mutilla; Bo Liu, Kun Yu, Yannan Mu, Lu Zhang, Chi Jin, Nathan I. Morehouse, Chen Zhang, Luyu Wang, and Qianle Lu for collecting the specimens for this study. Also, we would like to extend our gratitude to Qianle Lu for providing some of the living spider photographs of the species, and to Kiran Marathe for assistance with photographs of specimens from Singapore and Malaysia. Thank the two reviewers, Dr John T.D. Caleb and Cheng Wang, the subject editor, Dr Shuqiang Li, and the copy editors, Dr Robert Forsyth and Polina Petrakieva for their valuable comments that helped to improve the manuscript.
The authors have declared that no competing interests exist.
No ethical statement was reported.
This work was funded by the National Natural Science Foundation of China to Junxia Zhang (no. 32070422), a grant (code B2024-TTN-05) from the Ministry of Education and Training, Vietnam to Quang Duy Hoang, and the Natural Sciences and Engineering Research Council Canada to Wayne P. Maddison (Discovery Grant RGPIN 2018-05055).
All authors have contributed equally.
Zhiyong Yang https://orcid.org/0000-0002-7610-6843
Quang Duy Hoang https://orcid.org/0000-0003-1672-7960
Weihang Wang https://orcid.org/0000-0003-2460-4514
Wayne P. Maddison https://orcid.org/0000-0003-4953-4575
Junxia Zhang https://orcid.org/0000-0003-2179-3954
All of the data that support the findings of this study are available in the main text.