广西小毛瓢虫四新种记述(鞘翅目:瓢虫科)

DESCRIPTIONS OF FOUR NEW SPECIES OF SCYMNINK COCCINELLIDAE) FROM GUANGXl (COLEOPTERA: COCCINELLIDAE)

本文描述采自广西壮族自治区小毛瓢虫属(Scymnus Kugelann)的四新种,均隶属于小瓢虫亚属Scymnus(Pullus)Mulsant。其中包括刺端小瓢虫Scymnus(Pullus)cnidatus sp. nov.,弯端小瓢虫Scymnus(Pullus)accamptus sp. nov.,紫背小瓢虫Scymnus(Pullus)notus sp. nov.,黄胸小瓢虫Scymnus(Pullus)xanthostethus sp.nox.。模式标本保存于华南农业大学昆虫标本室。

This paper deals with two new species of Scymnus Kugelann, collected from the Nanknn mountain natural resource protection area, Guangdong Province, South China. The type specimens are deposited in the Entomological Museum of the South China. Agricultural Universi ty.Scymnus (Pullus) nankunicus sp. nov.Male-Length 1.4 mm. width 1.0 mm. Form otval in outline, moderately convex. Dorsal; pubeseence yellowish white. Head and pronotum yellow to light yellowish brown; seutellum dark brown; elytron dark brown (fig. 1a). The colour form alike to the Ne-plus arcuatus Kapur (Kapur, 1951), but differs with the generic characters and the characters of the genital'ia (fig. 1c, 1d). Holotype. male, China: Q-uangdong province (Nankun mountain natural protection area), 13, X, 1984, X. Pang. Paratype.-Male, China: Fujian province (Shaowu), 24. VII. 1984, X. Pang.Scymnus (Sct/miius) longmenicus sp. nov.Male.-Lcngth 2.2 mm. width 1.6 mm. Form oval in outline, moderately convex. Dor-sal pubescence yellowish white. Head.yellowish .brown; pronotum yellowish brown with large, basal, median, dark brown spot, extending from basal margin to, the middle; scu-tellum dark brown; apex of elytra narrowly yellowish brown (fig. 2a). The colour form allied to mamy other species, but differs .from the-others with the. genetalia characters, especially with the long siphomall tip (fig. 2c).Holotype male, China: Guangdong 'province (Nankun mountain natural resource protection area), 13, X, 1984, X. Pang.Allotype.-Female, same data as in Holotype,Paratypes-6 males and -females, same data as in holotype, with variation of the length 2.1-2.4mm. width 1.5-1.7mm.