Biodiversity Data Journal :
Taxonomic Paper
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Corresponding author: Sue Yeon Lee (hongdan200@naver.com)
Academic editor: Jeremy Miller
Received: 17 Aug 2021 | Accepted: 29 Oct 2021 | Published: 17 Nov 2021
© 2021 Jae Seong Im, Seung Tae Kim, Sue Yeon Lee
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:
Im JS, Kim ST, Lee SY (2021) Bassaniana birudis sp. nov., a new crab spider (Araneae, Thomisidae) from South Korea. Biodiversity Data Journal 9: e73109. https://doi.org/10.3897/BDJ.9.e73109
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The crab spider genus Bassaniana Strand, 1928 consists of six species mainly distributed in North America and Far East Asia. Two species of them, Bassaniana decorata (Karsch, 1879) and Bassaniana ora Seo, 1992, are known in Korea so far.
A new crab spider, Bassaniana birudis sp. nov. is described, based on a male collected from Gumi-si, Gyeongsangbuk-do, South Korea. Distribution records are provided, as well as photos of habitus and illustrations of the male copulatory organ. The type specimens of this study are deposited in the collection of the Nakdonggang National Institute of Biological Resources (NNIBR) and Konkuk University (KKU), South Korea.
Thomisidae, Bassaniana, new species, description, South Korea
The genus Bassaniana Strand, 1928 in the family Thomisidae Sundevall, 1833 was erected with Bassaniana versicolor (Keyserling, 1880) as the type species from North America. This genus is species-poor comprising of only six species currently worldwide (
External morphology was examined and illustrated using a stereoscopic dissecting microscope (LEICA, S8APO, Singapore). Images of habitus were taken with a CANON 650D digital camera with 60 mm macro-lens. Measurements of body parts were made with an ocular micrometer and are recorded in millimeters. Leg and palp (left) measurements are given as leg number, total length (femur, patella, tibia, metatarsus, tarsus). Terminology used to describe the palpal characters follows
Holotype male. Total length 4.20 (habitus). Carapace: 2.15 long/2.20 wide, dark reddish-brown, round, slightly wider than long, clothed sparsely with serrated setae especially along the cervical furrow, cephalic region of prosoma flat with a pair of light stripes along the median line, numerous warts present, cervical and radial furrows distinct, dark longitudinal fovea slightly depressed (Fig.
Female. Unknown.
The male of the new species can be easily distinguished from congeners of this genus, except B. ora by the thumb-like blunt RTA without a terminal spur (Fig.
The species name is a combination of Latin prefix ‘bi-’ (meaning two) and noun ‘rudis’ (meaning small stick) referring to two small rod-like proximal protuberances on the prolateral surface of the femur I (Fig.
South Korea: Gumi-si, Gyeongsangbuk-do (Fig.
The species was collected with a sweep net between shrubs in a mixed forest of hilly terrain near the tributary of the Nakdonggang River. Currently, females have not been collected and are not known, and no ecological information is available for this species other than its habitat.
Key to the males of South Korean species of Bassaniana |
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1 | Embolus tip curled, VTA with a spine-like terminal spur | B. decorata (Karsch) |
– | Embolus tip straight, VTA without terminal spur | 2 |
2 | VTA finger-like and slender, tegulum constricted, distinct, embolus separated from the tegulum | B. ora (Seo) |
– | VTA thumb-like and thick, tegulum unconstricted, embolus close to the tegulum | B. birudis sp. nov. |
This study was supported by the Nakdonggang National Institute of Biological Resources (NNIBR) (Grant Nos. NNIBR202101201) funded by the Ministry of Environment (ME), the Republic of Korea.