中文摘要：

通过对重庆市主城区5个样点的蝴蝶调查，共采集蝴蝶1629只，隶属4总科8科31属49种。从整个研究区域来看，东方菜粉蝶（Pieris conidia）为优势种，青风蝶（Graphium sarpedon）、菜粉蝶（Pieris rapae）、蒙链荫眼蝶（Neope muirheadi）、矍眼蝶（Vpthima halda）、苎麻珍蝶（Acraea issoria）和酢浆灰蝶（Pseudozizeeria maha）为常见种。样点的多样性指数从高到低依次为：南山植物园〉歌乐山〉照母山植物园〉铁山坪〉重庆大学校园。其中，特有属和特有种的数量从高到低依次为：照母山植物园〉铁山坪〉歌乐山〉南山植物园〉重庆大学校园。不同样点蝴蝶种类的相似性系数在0．1304—0．3462之间，铁山坪跟南山植物园之间的相似性系数最大，相似性系数最小的两个地点为重庆大学校园与南山植物园。不同生境中蝴蝶的多样性指数从高到低依次为：灌丛森林〉灌丛草地〉草地森林〉森林灌丛〉草地农田〉森林〉农田〉草地。

英文摘要：

From April to May,2006, the authors investigated fives sample points in Chongqing downtown area. A total of 1629 butterfly individuals were collected, which belonged to 4 superfamily, 8 families,31 genera and 49 spoeies. Of these, the dominant species was Pieris canidia, while common species were Graphhan sarpedon , Pieris rapae , Neope muirheadi , Ypthima bahia, Acraea issoria and Pseudozizeeria maha . The diversity indexes in every point were ranked in the following order： Nanshan Botanical Garden〉 Gele Mountain〉 Zhaomu Mountain Botanical Garden〉 Tieshanping 〉 Campus of Chongqing University.The endemic genera/species were ranked in the following order： Zhaomu Mountain Botanical Garden〉 Tieshanping 〉 Gele Mountain 〉 Nanshan Botanical Garden 〉 Campus of Chongqing University. The similarity coefficients of butterfly species among different habitats ranged from 0.1304 to 0.3462. The similarity coefficient between Tieshanping and Nanshan Botanical Garden was the highest,but it was lowest between the Campus of Chongqing University and Nanshan Botanical Garden. The order of diversity indexes in different habitat types was： shrub and forest 〉 shrub and grassland 〉 grassland and forest 〉 forest and shrub 〉 grassland and farmland 〉 forest 〉 farmland 〉 grassland.