Sasajiscymnus subulatus 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 : 17

Sasajiscymnus subulatus Tong & Wang sp. nov.

( Figs 10 , 63 )

Chinese name: Dz叶ḧ瓢•

Diagnosis. This species is similar to S. nakanei ( Araki, 1963) , but can be distinguished from the later by parameres distinctly dilated in lateral view ( Fig. 10f ). In S. nakanei , parameres are not dilated (Fig. 12f).

Description. TL: 1.89–2.21 mm, TW: 1.50–1.63 mm, TH: 0.85–0.96 mm.

Body oval, moderately convex, surfaces covered with short pubescence ( Figs 10a–c ). Head black with antennae and mouthparts yellow, interocular distance distinctly greater than eye width in frontal view. Pronotum and scutellar shield black. Elytra black with yellow apices. Ventral surfaces black. Legs brown. Abdominal postcoxal lines incomplete, slightly recurved toward the base of ventrite ( Fig. 10d ).

Male genitalia: Penis long and slender, penis capsule with short outer arm and long inner one, apex of penis pointed ( Fig. 9e ). Penis guide triangular in lateral view with pointed apex; parameres distinctly dilated in lateral view, about 2/3 as long as penis guide, and with a tuft of long setae at apex; penis guide widest at base in ventral view, bifurcated apically ( Figs 10f–g ).

Female genitalia: Coxites distinctly elongate, triangular; styli strongly reduced and hardly visible; spermatheca distinctly curved, with basal ramus and nodulus.

Type material. Holotype: China: Anhui: ♂, Guniujiang National Nature Reserve , 24.IX.2010, Wang XM leg ( SCAU) . Paratype ( SCAU): China: Anhui: 1♀, Same data as holotype .

Distribution. China (Anhui).

Etymology. The specific epithet subulatus derives from the Latin word “subulatus” and refers to the subulate penis guide in ventral view.

Figures

FIGURE 9. S. ohtai (Yang & Wu, 1972): a dorsal view, paratype, b ventral view, paratype, c lateral view, paratype, d frontal view, paratype, e abdomen, holotype, f penis, holotype, g tegmen, ventral view, holotype, h labels, paratype.

FIGURE 10. S. subulatus Tong & Wang sp. nov.: a dorsal view, b lateral view, c frontal view, d abdomen, male, e–h 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.