部分具翅昆虫后胸足基骨片的分化与系统发育  

Differentiation and Phylogeny of Metathoracic Pleural Sclerites in Selected Pterygote Insects

作　　者：任国栋[1] 宁靖[1] 

机构地区：[1]河北大学生命科学学院,河北保定071002

出　　处：《Entomotaxonomia》2011年第2期81-93,共13页昆虫分类学报（英文）

基　　金：国家自然科学基金项目(30630010)资助

摘　　要：从12目具翅昆虫中选出16个代表种,对其后足基骨片的形态特征在不同类群中的衍变进行分析比较,据此构建反映下列初步进化关系的系统树:[Ephemeroptera+(Odonata+Neoptera)]+[Plecoptera+(Megaloptera+Neuroptera+(Orthoptera+(Hemiptera+(Coleoptera+(Mecoptera+Lepidoptera+(Hymenoptera+Diptera))))))]。该树的关系表明,古翅类(Palaeoptera)与新翅类(Neoptera)的界限分明,Ephemeroptera与其他具翅昆虫类群的关系较远,而Odonata与其它具翅昆虫类群的关系较近;探讨了后者之间的分类地位和进化关系,对现有分类系统的一些地方提出质疑。Sixteen representative species of Pterygota are selected to analyse the development of morphological characteristics of metathoracic pleural sclerites in different taxa. A well-resolved cladogram of preliminary evolutionary relationships is produced with the topology： [Ephemeroptera ＋ （Odonata ＋ Neoptera）]＋ [Plec- optera＋（Megaloptera＋Neuroptera＋（Orthoptera＋（Hemiptera＋（Coleoptera＋（Mecoptera ＋Lepidoptera＋（Hymenoptera＋Diptera））））））]. This analysis indicates that Palaeoptera and Neoptera are clearly separated. Ephemeroptera is more distantly related to Neoptera while Odonata has a closer relationship. The taxonomic status and evolutionary relationships of Neoptera are discussed and some arguments are made that are in conflict with the current classification system.

关 键 词：具翅昆虫 后胸足基骨片 比较形态学 系统发育分析 

分 类 号：Q961[生物学—昆虫学]