The abdomen is the 3rd main segment of the body
The upper side is covered by the elytra, the lower side forms the venter. The abdomen consists of 8-9 segments. The dorsal segments are called tergite, the ventral segments sternite. The segments are more heavily chitinized and flexibly connected to each other, allowing the abdomen more flexibility than the head and thorax. The apical tergite is usually visible in dorsal view and is called pygidium. The apical sternite is also called anal sternite. At sides of the tergites tiny holes are located, the so called spiracles Through these pores oxygen-rich air can diffuse into tracheal tubes.