| Taken together, the antennae and their sensilla are the insect's window on the external world. |
| In some invertebrates sensilla are found all over the body, including on the legs, cerci, and wing margins. |
| Within each pit are 60 to 70 sensors called sensilla in insects. |
| Drosophila adults have 2000 chemosensory neurons that reside within segregated compartments called sensilla. |
| Short sensilla on the maxillary and labial palps, serve to recognize pheromone and touch when the male mounts the female. |
| Many of the sensory neurons belong to basiconic sensilla, each of which consists of a short tactile hair with one mechanosensory neuron and four chemosensory neurons. |
