Mosquito larva. Light microscope footage of the head of a mosquito larva (family Culicidae). The larva feeds by wafting food particles into its mouth using beating hairs of its mouth brushes to create a current. Mosquito larvae are aquatic and breathe through spiracles located on their abdomen, or through a siphon (breathing tube) on the end of their body. They feed on algae and other detritus suspended in the water.