山口红树林区昆虫种类组成及其季节变动的初步分析

A Preliminary Analysis of Species Composition and Its Seasonal Fluctuation of Insects in Shankou Mangrove Area

通过对山口红树林保护区昆虫春季（４月２５日～３０日）、夏季（７月１４日～１９日）、秋季（１０月５日～８日）和冬季（１２月２４日～２９日）的４次调查，结果表明昆虫物种组成较丰富，１年内共有１９４种（含亚种）昆虫在该地区出现。同时其季节变化也很明显，春季、夏季、秋季和冬季的昆虫物种数分别为：６９，１６６，９４和３３。春季的昆虫以双齿多刺蚁（Ｐｏｌｙｈａｃｈｉｓｄｉｖｅｓ）、淡紫异色粉蝶（Ｃｅｐｏｒａｎａｄｉｎａ）等占优势，夏季以黄柑蚁（Ｏｅｃｏｐｈｙｌａｓｍａｒａｇｄｉａｎ）、竹木蜂（Ｘｙｌｏｃｏｐａｎａｓａｌｉｓ）等占优势，秋季以黄柑蚁、白带黛眼蝶中泰亚种（Ｌｅｔｈｅｃｏｎｆｕｓａａｐａｒａ）等占优势，冬季则以小红瓢虫（Ｒｏｄｏｌｉａｐｕｍｉｌａ）。

According to 4 times investigations in spring (25～30 April),summer (14～19 July),autumn (5～8 October) and winter (24～29 December), the species composition of insects is rich and has a great change in the four seasons.There are about 194 species of insects (including subspecies) in this area.The number of species in spring,summer,autumn and winter is 69,166,94 and 33 respectively.In spring,the dominant species are Polyrhachis dives and Cepora nadina et al.In summer,the dominant species are Oecophylla smaragdina and Xylocopa nasalis et al.In autumn,the dominant species are O. smaragdina and Lethe confusa apara et al.In winter,they are dominated by Rodolia pumila and Aiolopus tamutus et al.