cockroaches have what type of antenna
Cockroach antennae have a variety of mechanoreceptors that differ in morphology, location, and function. Morphologically, the antennal mechanoreceptors are classified as follows: hair sensillum (or simply hair), campaniform sensillum, and chordotonal sensillum.f the variety of senses, the tactile sense is thought to play a key role for perceiving physical objects. Because most cockroach species are nocturnal, the tactile sense of the antenna would be essential to determine the position, shape, and texture of surrounding objects in the dark.