A filter chamber prevents ingestion of large food particles by an insect with piercing-sucking mouthparts. An insect must use both eyes simultaneously to detect movement of an object in its visual field.
Proprioceptors are sensory organs that provide information about the external environment.
The closer an onject is, the more easily an insect can perceive its shape. Male moths are able to regulate the sex of their offspring. A commissure runs from the ganglion of one body segment to the ganglion of the next body segment. Some insects can taste their food with their feet. Dorsal ocelli are the primary visual organs of hemimetabolous nymphs.