摘要
本文描述在四川西部海拔近4000m地区发现的菜蝽属两个新种:山地菜蝽 Eurydemamantanum Ling和高山菜蝽Eurydema alpinum Ling。此两新种的雄虫抱器基部均具骨化突起,与已知广布种菜蝽 E.dominulus(Scopoli)区別明显。新种山地菜蝽体小,较宽短,虫体背腹面色斑及雄虫抱器形状与菜蝽和新种高山菜蝽极易区分。
In this paper, two new species of Eurydema Laporte from Sichuan Province are described. All type specimens are deposited in Sichuan Natural Resources Institute. Eurydema montanum sp. nov. (figs. 1-5)Body black with dense punctures. Red stripes on body as shown in fig. 1. Beneath black with two longitudinal brownish bands. Head black, lateral margins red. Antennae black, proportion of antennal segments Ⅰ: Ⅱ: Ⅲ: Ⅳ: Ⅴ=0.6: 0.65: 0.50: 0.70: 1.0. Rostrum black, rach-ing mesocoxae. Dorsum of abdomen redbrown. Connexivu red with Larger black spots (fig. 2). Membrane brownish. Body length ♂5.5mm ♀6.5 mm; width ♂3.1 mm, ♀3.6 mm.Pygofer, clasper and phallus as shown in figs. 3, 4 & 5.Similar to Eurydema dominulus (Scopoli) but smaller in size, and body color pattern and the shape of male clasper quite different.Holotype♂, allotype♀, Xinluhai (31°50'N, 99°07'E) (ah. 3950 m), Sichuan Province, 1982. VI. 12.Eurydema alpinum sp. nov. (figs. 6-10)Body oval, red or reddishbrown with black maculation and punctures. Head black, lateral margin red. Antennae brown or black, proportion of antennal segments Ⅰ: Ⅱ: Ⅲ: Ⅳ: Ⅴ = 0.35: 0.70: 0.60: 0.90: 1.00. Rustrum black, extending just beyond mesocoxae. Color pattern on pro-notum similar to that of E. montanum sp. n. and those on corium and scutellum similar to that of E. dominulus (Scopoli). Membrane brownish. Legs dark brown or black. Dorsum of abdomen reddish brown, beneath the reddish color with large black spots (fig. 6). Connexivum reddish with black spots as shown in fig. 7.Body length ♂6.4 mm, ♀8.1 mm; width ♂4.0 mm, ♀4.3 mm.Clasper, phallus and spermatheca as shown in figs. 8, 9 & 10.Allied to E. dominulus (Scopoli) but the maculation on pronotum and abdomen different and clasper with a thumb-like lobe. Also allied to E. montanum sp. n., but body larger, red areas on corium larger, black spots on abdomen and connexium different and clasper with a long stem.Holotype ♂, allotype ♀, Mt. Shaluli (31°00'N, 100°10'E) (alt. 3700m), Sichuan Province, 1983. VI. 20; paratypes 2♂, 3♀, Mt: Shaluli and Xinluhai, Sichuan Province.
出处
《动物分类学报》
CSCD
1989年第2期193-197,共5页
Acta Zootaxonomica Sinica
关键词
菜蝽属
蝽科
新种
Heteroptera Pentatomidae Eurydema New species
