Sasajiscymnus bivalvis
Creators: name: TONG, JUNBO
name: CHEN, XIAOSHENG
name: ZHANG, XIAONING
name: HUO, LIZHI
name: WU, GANG
name: PENG, ZHENGQIANG
name: WANG, XINGMIN
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Sasajiscymnus
Sasajiscymnus bivalvis

description: Sasajiscymnus bivalvis (Yu, 1997)
(Figs 3b, 3f, 39, 72)
Chinese name: R瓣ḧ瓢•
Pseudoscymnus bivalvis Yu, 1997: 720 (type locality: Longmenhe National Forest Park, Xingshan, Hubei, China).— Pang et al. 2004: 86; Kovář 2007: 582.
Sasajiscymnus hivalvis: Iqbal et al. 2020: 387 [Misspelling].
Diagnosis. This species is similar to S. curvatus (Yu, 1999) in structures of the male genitalia, but can be distinguished from the later by the black elytra with yellowish brown apices, and the parameres about 1/2 as long as penis guide (Figs 39a–b, 39g). In S. curvatus, elytra are black with two C-shaped yellow marking and parameres are about 1/3 as long as penis guide (Figs 28a–b, 28g).
Description. TL: 1.98–2.68 mm, TW: 1.43–2.06 mm, TH: 0.95–1.21 mm.
Body oval, moderately convex, surfaces covered with short pubescence (Figs 39a–c). Head yellowish brown with interocular distance distinctly greater than eye width in frontal view. Pronotum yellowish brown. Scutellar shield black. Elytra black with yellowish brown apices. Ventral surfaces yellowish brown to black. Legs yellowish brown. Abdominal postcoxal lines incomplete, recurved toward the base of ventrite (Fig. 39d).
Male genitalia: Penis stout, penis capsule with stout outer arm and long inner one, apex of penis constricted with membranous appendage (Figs 39e–f). Penis guide with prominent keel at base in lateral view, then tapering towards pointed apex; parameres about 1/2 as long as penis guide, with a tuft of long setae at apex; penis guide approximately parallel sided for basal 1/ 3 in ventral view, apically pointed (Figs 39g –h).
Female genitalia: Coxites elongate, triangular; styli well developed with terminal setae; spermatheca distinctly curved, with basal ramus and elongate nodulus (Figs 3b, 3f).
Type material. Holotype: China: Hubei: ♂, Longmenhe National Forest Park, Xingshan County, 1300 m, 12.IX.1994, Li FS leg (CAU). Other material (SCAU). China: Zhejiang: 1♂, Wangdongyang Mountain Wetland Nature Reserve, [119°38'12.09"E 27°41'19.61"N], 1261 m, 10.X.2017, Tong JB leg. Anhui: 1♂ 1♀, Guniujiang National Nature Reserve, 24.IX.2010, Wang XM leg; 1♂, Yaoluoping National Nature Reserve, 600–800 m, 30.IX.2010, Wang XM leg; 2♀, Jinzhai Tianma National Nature Reserve, 600 m, 3–5.X.2010, Wang XM leg. Fujian: 3♂ 1♀, Sanbailiao, Tianboyan National Nature Reserve, 690 m, 26.VIII.2012, Huo LZ leg; 1♂, Fengtian, Tianboyan National Nature Reserve, 800 m, 27.VIII.2012, Huo LZ leg; 1♂ 5♀, Zonghechang, Longxishan National Nature Reserve, 750 m, 30.VIII.2012, Huo LZ leg; 1♂, Guadun, Wuyishan National Nature Reserve, 1200 m, 14.IX.2012, Huo LZ leg; 3♂ 2♀, Masu, Wuyishan National Nature Reserve, 1291 m, 15.IX.2012, Huo LZ leg; 4♂ 1♀, Tongmu Village, Wuyishan National Nature Reserve, 750 m, 17.IX.2012, Huo LZ leg. Jiangxi: 2♂, Taihe County, 12.VIII.2004, Wang XM leg; 1♂ 2♀, Xiangzhou, Jinggangshan National Nature Reserve, 14.VIII.2004, Wang XM leg; 9♂ 4♀, Bijia Mountains, Jinggangshan National Nature Reserve, 15.VIII.2004, Wang XM leg; 4♂ 6♀, Huangyangjie, Jinggangshan National Nature Reserve, 16.VIII.2004, Wang XM leg. Hunan: 11♂, Mangshan National Nature Reserve, 3.X.2004, Ren SX leg; 1♂, Shennonggu National Forest Park, 1000 m, 8.X.2010, Wang XM leg; 2♂ 1♀, Shennonggu National Forest Park, 650–800 m, 9.X.2010, Wang XM leg. Guangdong: 14♂ 1♀, Qinshuigu, Nanling National Nature Reserve, 30.IX.2004, Wang XM leg; 2♂ 1♀, Protection station, Nanling National Nature Reserve, 3.X.2004, Wang XM leg; 14♂ 9♀, Xidianzhan, Nanling National Nature Reserve, 1.X.2004, Wang XM leg; 1♂, Huangniping, Shimentai National Nature Reserve, 7.X.2004, Wang XM leg; 2♂, Shimen, Shimentai National Nature Reserve, 29.X.2004, Wang XM leg; 2♂, Huangdong, Shimentai National Nature Reserve, 30.X.2004, Wang XM leg; 4♂ 2♀, Dadong Mountains, Nanling National Nature Reserve, 19.VII.2005, Wang XM leg; 8♂ 14♀, Qinshuigu, Nanling National Nature Reserve, 21.IX.2005, Wang XM leg; 2♀, Tianjingshan National Forest Park, 22.IX.2005, Wang XM leg. Guangxi: 2♂ 2♀, Hillside, Mao’ershan National Nature Reserve, 17.X.2004, Wang XM leg; 1♀, Jiuniutang, Mao’ershan National Nature Reserve, 18.X.2004, Wang XM leg; 8♂ 1♀, Shili Canyon, Mao’ershan National Nature Reserve, 19.X.2004, Wang XM leg; 8♂ 3♀, GaoZhai, Mao’ershan National Nature Reserve, 20.X.2004, Wang XM leg. Sichuan: 1♂ 1♀, Puge County, 2000 m, 15.IX.2007, Wang XM leg. Guizhou: 1♀, Leigongshan National Nature Reserve, 9.VIII.2006, Wang XM leg; 1♂, Datangwan, Leigongshan National Nature Reserve, 1100 m, 5.X.2008, Wang XM leg; 1♂, Xiangshuiyan, Leigongshan National Nature Reserve, 980 m, 9.X.2008, Wang XM leg; 1♂, Taojiang Town, Rongjiang County, 1000 m, 10–11.X.2008, Wang XM leg; 1♂, Xiaodanjiang, Leigongshan National Nature Reserve, 12–13.X.2008, Wang XM leg; 3♂ 5♀, Dongtang, Maolan National Nature Reserve, 730 m, 15–18.X.2008, Wang XM leg; 1♂ 1♀, Weng’ang, Maolan National Nature Reserve, 750 m, 20–23.X.2008, Wang XM leg.
Distribution. China (Zhejiang, Fujian, Jiangxi, Hubei, Hunan, Guangdong, Guangxi, Sichuan; Guizhou).
description: Published as part of TONG, JUNBO, CHEN, XIAOSHENG, ZHANG, XIAONING, HUO, LIZHI, WU, GANG, PENG, ZHENGQIANG & WANG, XINGMIN, 2022, A review of the genus Sasajiscymnus Vandenberg, 2004 from China (Coleoptera, Coccinellidae), pp. 1-104 in Zootaxa 5207 (1) on pages 56-58, DOI: 10.11646/zootaxa.5207.1.1, http://zenodo.org/record/7328080