Head: 4-6-segmented Thorax: 3-segmented; Abdomen: 11-segmented Antenna Ocellus Prothoracic leg Front wing Compound eye Head Thorax Metathorax Metathoracic leg Cercus
(4) Sclerites and Regions of Body 体面和骨化区 ■ dorsal side背面 背板 Tergum; pl. terga背片 tergite pleural side侧面 侧板 pleuron;pl. pleura-侧片 pleurite ventral side腹面— 腹板 sternum;pl. sterna-腹片 sternite
(5)内骨骼 Endoskeleton sulcus and suture沟和缝 sulcus, pl sulci Sutures 缝 ridge and apodeme内脊和内突 ridge内脊 apodeme内突