Two new glucosides, bambusicolasides VII (1) and VIII (2), were isolated from the ethanolic extract of the bamboo aphid Pseudoregma bambusicola. The structures of the two glucosides were identified as 7-O-[2-O-β-D-glucopyranosyl-(1→2)-β-D-glucopyranosyl]-2,5-dimethylchromone (1) and 1,3-di-(O-β-D-glucopyranosyl)-6-methyl-7-nitro-8-naphthol (2) on the basis of spectral data as well as chemical methods.

中文翻译：

---

Bambusicolasides VII 和 VIII，来自竹蚜 Pseudoregma bambusicola 的两种新葡萄糖苷

从竹蚜 Pseudoregma bambusicola 的乙醇提取物中分离出两种新的糖苷 bambusicolasides VII (1) 和 VIII (2)。两种葡萄糖苷的结构被鉴定为 7-O-[2-O-β-D-吡喃葡萄糖基-(1→2)-β-D-吡喃葡萄糖基]-2,5-二甲基色酮 (1) 和 1,3-二-(O-β-D-吡喃葡萄糖基)-6-methyl-7-nitro-8-naphthol (2) 基于光谱数据和化学方法。