The thorax is the midsection (tagma) of the hexapod body (insects and entognathans). It holds the head, legs, wings and abdomen. It is also called mesosoma or cephalothorax in other arthropods.

Dec 22, 2025 · The insect thorax consists of three segments (called the prothorax, mesothorax, and metathorax), which may be fused but are usually recognizable. Each segment has four groups of …

The second (middle) tagma of an insect’s body is called the thorax. This region is almost exclusively adapted for locomotion — it contains three pairs of walking legs and, in many adult insects, one or …

Nov 27, 2025 · Recognizable due to its role in bearing legs and wings, the thorax is the second major tagma of the insect body, having evolved early in insect phylogeny. It significantly differs from the …

Jan 15, 2025 · The thorax, the central body region of insects, lies between the head and abdomen. It is composed of three segments—prothorax, mesothorax, and metathorax—each playing a pivotal role …

The thorax runs from the back of the head to the end of the last segment with legs attached. The head and thorax are connected by a membranous area called the cervix. The thorax itself consists of three …

Apr 18, 2020 · The Insect Thorax: Complete Guide The thorax is the main engine room of the insect. It, like the insect abdomen, is built up of a series of concave upper and convex lower integumental plates.

The insect thorax is divided into three parts: the prothorax (pro=first), mesothorax (meso=middle), and metathorax (meta=last). Each segment consists of hardened plates, or sclerites.

Jun 22, 2025 · The thorax is the anchor point for an insect’s legs and, when present, its wings. Each of the three thoracic segments—prothorax, mesothorax, and metathorax—bears a single pair of legs, …

Chapman indicates that there are differing degrees of fusion between sternal plates in the thorax such that 4 different conditions may occur: 1) all elements separate - prothoracic eusternum, first …