|Campsosternus gemma Candeze (Rainbow Sheath Click Beetle) 虹彩叩頭蟲|
The Rainbow Sheath Click Beetle has a bright appearance with a body length of 3.3-3.6 cm. Its dorsal prothorax is greenish blue, with two lateral red lines; its elytra are bluish green with metallic luster. Between prothorax and metathorax is a hinge joint that enables the head and prothorax to move freely. Endemic to Taiwan, the beetle is a rare and valuable species of conservation concern.