Sasajiscymnus disselasmatus ( Pang & Huang, 1986 )

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), Zootaxa 5207 (1), pp. 1-104 : 63-64

Sasajiscymnus disselasmatus ( Pang & Huang, 1986)

( Figs 44 , 67 )

Chinese name: RṘḧ瓢•

Pseudoscymnus disselasmatus Pang & Huang, 1986: 65 (type locality: Nanjing, Fujian, China).— Yu 1995b: 146; Pang et al. 2004: 87; Kovář 2007: 582.

Sasajiscymnus disselasmatus: Iqbal et al. 2020: 383 .

Diagnosis. This species is closely similar to S. sagittalis sp. nov., but can be distinguished from the later by the black scutellar shield and the apex of penis with distinct membranous appendage on inner side ( Figs 44a, 44g ). In S. sagittalis, Scutellar shield is yellowish brown and the apex of penis is conspicuously swollen with membranous appendage on both sides ( Figs 41a, 41f ).

Description. TL: 1.68–2.26 mm, TW: 1.23–1.66 mm, TH: 0.68–0.86 mm.

Body oval, moderately convex, surfaces covered with short pubescence ( Figs 44a–c ). Head yellow with interocular distance distinctly greater than eye width in frontal view. Pronotum yellow. Scutellar shield black. Elytra black with yellow apices. Ventral surfaces yellow to black. Legs yellow. Abdominal postcoxal lines incomplete, slightly recurved toward the base of ventrite ( Fig. 44e ).

Male genitalia: Penis stout, penis capsule with stout outer arm and long inner one, apex of penis with distinct membranous appendage (Figs 44f–g). Penis guide with prominent keel at base in lateral view, then tapering towards apex; parameres about 2/3 as long as penis guide, with a tuft of long setae at apex; penis guide widest at base in ventral view, then gradually narrowing to blunt apex ( Figs 44g –h ).

Female genitalia: Unknow.

Material examined. Holotype: China: Fujian: ♂, Nanjing County, 7.III.1980, Liu SJ leg ( SCAU) . Other material ( SCAU). China: Guangdong: 1♂, Shixing County, 8.VII.1989, Pang XF leg ; 1♂, Yangqiu Mountains, Shimentai National Nature Reserve , 6.X.2004, Wang XM leg ; 1♂, Shimen, Shimentai National Nature Reserve , 29.X.2004, Wang XM leg.

Distribution. China (Fujian, Guangdong).

Remarks. Yu et al. (1993) reported S. disselasmatus from Chebaling National Nature Reserve. Compared with the holotype, specimen examined by Yu et al. (1993) has penis guide widest near the base and not expanded penis apex, hence we considered it as a misidentification of S. lancetapicalis .

Figures

FIGURE 41. S. sagittalis Tong & Wang sp. nov.: a dorsal view, b lateral view, c frontal view, d abdomen, male, e–h male genitalia: e penis, f apex of penis, g tegmen, lateral view, h tegmen, ventral view. Scale bars: a–c: 0.5 mm; d–h: 0.1 mm.

FIGURE 44. S. disselasmatus (Pang & Huang, 1986), holotype: a dorsal view, b lateral view, c frontal view, d labels, e abdomen, f–i male genitalia: f penis, g apex of penis, h tegmen, lateral view, i tegmen, ventral view. Scale bars: a–c: 0.5 mm; e–i: 0.1 mm.

FIGURE 67. Distribution of the Sasajiscymnus hareja species group: ● S. seminigrinus (Yu & Pang, 1993); ■ S. maculatus Tong & Wang sp. nov.; ◆ S. changi (Yang, 1971); ▲ S. disselasmatus (Pang & Huang, 1986)