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Cyclocosmia ricketti, male from Mangdang Mountain, right palpal bulb organ: A prolateral view; B retrolateral view.
Source publication
The genus Cyclocosmia Ausserer, 1871 of the spider family Halonoproctidae Pocock, 1901 includes ten known species from North America and Asia. Since Cyclocosmia ricketti was described by Pocock in 1901, no males of this species have ever been reported.
The male of Cyclocosmia ricketti is described for the first time, based on a specimen collected n...
Similar publications
Theridion Walckenaer, 1805 is the most spider rich genus of Family Theridiidae. So far, 585 species, and subspecies, of the genus Theridion have been recorded from various parts of the world. Theridion hotanense Zhu & Zhou, 1993 is described for the first time from India. Digital photographs are used to redescribe the species.
Citations
... In subsequent works [Gertsch, Platnick, 1975;Schwendinger, 2005;Zhu et al., 2006;Xu et al., 2017;Yu, Zhang, 2018;Lin et al., 2022;Yu et al., 2023] a number of new species were described from the USA and across Asia, and the missing sexes of some historical species have also been described. Currently, eight species are known from Asia: Cyclocosmia lannaensis Schwendinger, 2005 from China and Thailand, C. latusicosta Zhu, J.X. Zhang et F. Zhang, 2006from China and Vietnam, C. liui Xu, Xu et Li, 2017, C. ricketti (Pocock, 1901, C. ruyi Yu et Zhang, 2023, C. sublatusicosta Yu et Zhang, 2018and C. subricketti Yu et Zhang, 2018endemic to China, and C. siamensis Schwendinger, 2005 Thailand and Laos. ...
... During the course this work, I detected keels at the apex of the embolus (Figs 17-20), a character hitherto not yet properly recognised and discussed in detail for Cyclocosmia (mentioned briefly as an "apophysis" by Lin et al. [2022] and indirectly as a "hook-like structure" by Yu et al. [2023: 16]). These keels have been standardised herein. ...
... cur in other species of the genus where photographs are available (e.g., Xu et al. [2017]; Yu, Zhang [2018]; De Luna et al. [2021]; Lin et al. [2022]; Yu et al. [2023]). I suspect they are present in species known only from drawings also, yet this must be confirmed (and the precise morphology of the keels of all other species described in detail) through re-examination of the material. ...
A new species of the genus Cyclocosmia Ausserer, 1871 is described from Vietnam: Cyclocosmia abramovi sp.n., based on males collected from Nghe An Province.
The genus Cyclocosmia Ausserer, 1871 previously included ten species from North America and Asia, six of which have been recorded from China.
A new species, Cyclocosmia ruyi Yu & Zhang sp. n. , is described and diagnosed, based on both sexes from Guangxi Province, China. Morphological characters for the early stages of juveniles of the new species are also provided.
