Sasajiscymnus fusinus Tong & Wang

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 : 9-10

Sasajiscymnus fusinus Tong & Wang sp. nov.

( Figs 4 , 63 )

Chinese name: 梭叶ḧ瓢•

Diagnosis. This species is similar to S. lishanicus sp. nov., but can be distinguished from the later by the uniformly black elytra, larger and more elongate body size, and parameres about 1/3 as long as penis guide ( Figs 4a–b, 4f ). In S. lishanicus , elytra are black with yellowish brown apices, body size is smaller and shorter, and parameres are about 1/2 as long as penis guide (Figs 11a–b, 4g).

Description. TL: 1.13–2.10 mm, TW: 1.34–1.61 mm, TH: 0.97–1.06 mm.

Body oval, moderately convex, surfaces covered with short pubescence ( Figs 4a–c ). Body uniformly black, except antennae, maxillary palpi and legs somewhat yellowish brown. Interocular distance distinctly greater than eye width in frontal view. Abdominal postcoxal lines incomplete, recurved toward the base of ventrite ( Fig. 4d ).

Male genitalia: Penis long and slender, penis capsule with short outer arm and long inner one, apex of penis pointed ( Fig. 4e ). Penis guide triangular in lateral view with pointed apex; parameres about 1/3 as long as penis guide, with a tuft of long setae at apex; penis guide approximately widest at basal 1/ 3 in ventral view, bifurcated apically ( Figs 4f–g ).

Female genitalia: Coxites triangular; styli strongly reduced and hardly visible; spermatheca worm-like, with basal ramus and nodulus.

Type material. Holotype: China: Shanxi: ♂, Xiachuan Village, Lishan National Nature Reserve , 1545 m, 9.VII.2013, Huo LZ leg ( SCAU) . Paratypes ( SCAU): China: Shanxi: 1♂, Same data as holotype . Henan: 2♂ 2♀, Baotianman National Nature Reserve , 6.VII.2009, Wang XM leg. Shaanxi: 1♀, Cuihuan Mountains, Chang’an District, Xi’an City , 1300 m, 30.VII.2009, Wang XM leg.

Distribution. China (Shanxi, Henan, Shaanxi).

Etymology. The specific epithet fusinus derives from the Latin word “fusinus” and refers to the fusiform penis guide.

Figures

FIGURE 4. S. fusinus Tong & Wang sp. nov.: a dorsal view, b lateral view, c frontal view, d abdomen, male, e–g male genitalia: e penis, f tegmen, lateral view, g tegmen, ventral view. Scale bars: a–c: 0.5 mm; d–g: 0.1 mm.

FIGURE 63. Distribution of the Sasajiscymnus sylvaticus species group: ● S. fusinus Tong & Wang sp. nov.; ■ S. ohtai (Yang & Wu, 1972); ◆ S. anmashanus (Yang, 1971); ▲ S. acutus Tong & Wang sp. nov.; ★ S. subulatus Tong & Wang sp. nov.