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The ground plan of the abdomen of an adult insect typically consists of 11–12 segments and is less strongly sclerotized than the head or thorax. Each segment of the abdomen is represented by a sclerotized tergum, sternum, and perhaps a pleurite. Terga are separated from each other and from the adjacent sterna or pleura by a membrane.
Download as PDF; Printable version; In other projects ... The abdomen is the largest part of the insect, typically with 11–12 segments, and is less strongly ...
pdf download manual (two parts Main text and figures index) Hongfu, Zhu, 1949 How to know the immature insects; an illustrated key for identifying the orders and families of many of the immature insects with suggestions for collecting, rearing and studying them, by H. F. Chu. Pictured key nature series Dubuque, Iowa, W. C. Brown Co. Full text ...
The aim of the Handbooks is to provide illustrated identification keys to the insects of Britain, together with concise morphological, biological and distributional information. The series also includes several Check Lists of British Insects. All books contain line drawings, with the most recent volumes including colour photographs.
Adult lepidopterans have four wings – a forewing and a hindwing on both the left and the right side of the thorax – and, like all insects, three pairs of legs. [11] The morphological characteristics which distinguish the order Lepidoptera from other insect orders are: [10]: 246
In Lepidoptera, sexual dimorphism is widespread and almost completely determined by genetic determination. [11] Sexual dimorphism is present in all families of the Papilionoidea and more prominent in the Lycaenidae, Pieridae, and certain taxa of the Nymphalidae. Apart from a color variation which may differ from slight to completely different ...
They are the only insects to share this combination of characteristics. The term cricket is popularly used for any cricket-like insect in the order Ensifera, being applied to the ant crickets , bush crickets ( Tettigoniidae ), Jerusalem crickets ( Stenopelmatus ), mole crickets , camel crickets and cave crickets ( Rhaphidophoridae ) and wētā ...