The larvae of Lepidoptera are usually eruciform, each of the thoracic segments bears a pair of legs,and abdominal segments 3-6 and 10 usually bear a pair of prolegs. Larvae have chewing mouthparts ■ 四句顺口溜来记忆： ■虹吸口器鳞翅目， ■四翅膜质鳞片覆； ■蝶舞花间蛾扑火， ■幼虫多足害植物。 ◼ The larvae of Lepidoptera are usually eruciform, each of the thoracic segments bears a pair of legs, and abdominal segments 3-6 and 10 usually bear a pair of prolegs. ◼ Larvae have chewing mouthparts ◼ 四句顺口溜来记忆： ◼ 虹吸口器鳞翅目， ◼ 四翅膜质鳞片覆； ◼ 蝶舞花间蛾扑火， ◼ 幼虫多足害植物