Yes
The back end of an insect is called, the Abdomen. Their body consists of the Head, the Thorax, and the Abdomen.
Head goes on the front, abdomen goes on the back.
Abdomen.
Earwigs have a pair of pincers.
Head,thorax,abdomen front to back. with some species specific exceptions
The back end of a spider is called the abdomen. It is the largest part of the spider's body and contains vital organs such as the heart, respiratory system, and digestive system.
The bug that has spikes on its back is called a spiny leaf insect.
The bug that has two antennas on its back is called an insect.
The insect you are referring to is called a "stink bug."
Antennae, compound eyes, external skeleton, three body parts and six legs are what makes an insect an insect.Specifically, an insect has one pair of antennae -- sometimes called feelers -- on the first of its three body parts, the head. Thousands of photoreceptor units make up an insect's eyes. Its skeleton supports its body from the outside, not the inside as is the case with humankind. It will have noticeable middle (thorax) and end (abdomen) body regions as well as three sets of jointed, segmented legs.
The insect order characterized by a straight line down its abdomen is the Hemiptera, commonly known as true bugs. This line is often referred to as the "scutellum," which is a triangular plate on the back of the insect. Hemiptera includes a variety of insects such as aphids, planthoppers, and shield bugs, many of which are known for their piercing-sucking mouthparts.
On the back side, you have quadratus lumborum. Then you have external oblique, internal oblique and transverse abdominis muscles. Then you have that six pack muscle, called as rectus abdominis, in the center of the abdomen.