丽蛱蝶、文蛱蝶和斑珍蝶幼期形态记述及生物学初步观察

Morphological Records and Biology of Parthenos sylvia,Vindula erota(Lepidoptera:Nymphalidae) and Acraea violae(Lepidoptera: Acraeidae)

记述了丽蛱蝶、文蛱蝶和斑珍蝶等3个珍贵观赏蝶种的幼期形态特征、成虫和幼虫的主要习性。在西双版纳国家级自然保护区关坪管理站，丽蛱蝶实验种群1年发生6代，以滞育成虫越冬，成虫以腐烂水果和树液为补充营养，卵散产，幼虫5龄，分散栖息，有假死习性；文蛱蝶1年发生4代，以成虫越冬，成虫访花，也食发酵水果汁液，卵聚产，幼虫5龄，有群集性；斑珍蝶1年发生4代，以3～5龄幼虫越冬，成虫访花，卵聚产，幼虫6龄，有群集性。长叶西番莲为丽蛱蝶的新发现寄主，三开瓢为文蛱蝶和斑珍蝶的新发现寄主。

Morphological, as well as behavioral characteristics of immature stages and adults were observed for three precious ornamental butterfly species, Parthenos sylvia, Virtdula erota and Acraea violae, whose larvae fed on lianes in the family Passifloraceae in Xishuangbanna, south of Yunnan province. While adults of Parthenos sylvia fed on rotted fruits and wounds of tree trunks, and females laid their eggs singly, adults of Vindula erota and Acraea violae visited flowers, especially those of Lantana camara, and laid eggs gregariously, although Vindula erota sometimes fed on rotted fruits too. Both the larvae of Parthenos sylvia and Vindula erota had 5 instars, but larvae of Acraea violae had 6 instars. Passiflora siamica （Passifloraceae） was used as host plants by Parthenos sylvia, and Adenia cardiophylla （Passifloraceae） was used by the two others. They are all newly recorded host plants for the three butterfly species repectively. The experimental populations of Parthenos sylvia, Vindula erota and Acraea violae had 6, 4 and 4 generations a year, respectively, and overwintered by adults in Parthenos sylvia and Vindula erota, but 3--5 instar larvae in Acraea violae.