4种昆虫鞘翅表面超微结构的比较

A comparative study on elytral ultrastructures in beetles of four species

利用扫描电镜观察研究了 4种昆虫鞘翅的超微结构 ,结果显示其特征各有差异 :叶甲科的杨叶甲 (Chrgsomela populi Linnaeus)和柳二十斑叶甲 (Chuysomela vigintipunctsta Scopoli)鞘翅体表不被毛 ,具凹陷 ,有一细毛自凹陷中伸出 ;瓢虫科的菱斑食植瓢虫 (Epilachna insignis Gorham)和银莲花食植瓢虫 (Epilachna convexa Dieke)鞘翅体表被毛 ,凹陷中不着生细毛。鞘翅表面的不同特征显示了鞘翅形态的多样性。

The elytral surface ultrastructure of four species in Coleoptera was examined with SEM,and the revealed that they were different apparently.The elytral surface of Chrysomela vigintipunctata and Chrysomela populi Linnaeus both have setae arising centrelly on the floor of pits in Chrysomelidae. No setae are present on the elytral surface of Epilachna convexa (Dieke) and Epilachna insignis Gorham,in contrast to Coleoptera Epilachna. Differences in the elytral surface structures suggest the diversity of elytral morphology.