Basic Morphology

The insect body is divided into segments (hence Insect … In-sections) and are each controlled by their own ganglia– which are mini-brains which altogether form the nervous system.

The head is divided into 6 segments (labral, antennal, intercalary, mandibular, maxillary and labial), the thorax into 3 (prothorax, mesothorax and metathorax) and the abdomen into 11 segments. This general body plan of an insect can differ between orders but most insects loosely resemble the diagrams below.

This is a typical insect leg. These segments can be modified depending on the need of the insect’s locomotion.

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This shows the typical venation on an insects. The various veins, cross veins and sizes of cells between them can be used to identify a wide variety of insects.

 

 

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