The first genus with four sac-like structures in the vulva in the cobweb spider subfamily Theridiinae Sundevall, 1833 (Araneae: Theridiidae)

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  The first genus with four sac-like structures in the vulva in the cobweb spider subfamily Theridiinae Sundevall, 1833 (Araneae: Theridiidae) Abstract The morphological characters of copulatory organs are the most important basis in spiders for identification. In theridiids, a vulva with four sac-like structures is mostly associated with the subfamily Hadrotarsinae but has never been recorded in Theridiinae. Based on specimens collected from subtropical forest canopies in China, a new Theridiinae genus that has four sac-like structures in the vulva is described: Sactheridion gen. nov., with the type species S. chuan gen. & sp. nov. from Sichuan Province, China. Photos, diagnosis, description, and a distribution map of the new genus and new species are provided. Hu, C., Yao, Z., Liu, J. & Xu, X. (2026) The first genus with four sac-like structures in the vulva in the cobweb spider subfamily Theridiinae Sundevall, 1833 (Araneae: Theridiidae). Zootaxa, 5884 (1), 167–175. http...

The genus Phanagenia Banks, 1933 (Hymenoptera: Pompilidae) from China with descriptions of two new species and a key to the world species

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The genus Phanagenia Banks, 1933 (Hymenoptera: Pompilidae) from China with descriptions of two new species and a key to the world species

Abstract

The genus Phanagenia Banks, 1933 from China is reviewed. Two new species, Phanagenia bidenticulata He & Ma, sp. nov. from the Oriental region (Yunnan) and Ph. cornuta He & Ma, sp. nov. from the Palaearctic region (Hebei and Inner-Mongolia), are described and illustrated from China. The genus Phanagenia and the species Ph. takasago Tsuneki, 1989 is newly recorded from the Palaearctic region. A key to the world species of the genus Phanagenia is given.

HE, Y., LI, Q., & MA, L. (2024). The genus Phanagenia Banks, 1933 (hymenoptera: Pompilidae) from China with descriptions of two new species and a key to the world species. Zootaxa, 5446(4), 542–552. https://doi.org/10.11646/zootaxa.5446.4.6