What kind of neuron senses a mosquito on your arm?

The neurons that sense a mosquito on your arm are primarily sensory neurons, specifically mechanoreceptors and chemoreceptors. Mechanoreceptors detect the physical sensation of the mosquito landing on your skin, while chemoreceptors can sense the chemicals released by the mosquito, such as saliva. Together, these sensory neurons send signals to the brain, alerting you to the presence of the mosquito.