The larval head is short and stout becoming darker toward the base. The mouth brushes have long yellow filaments that are used for filtering organic materials. The abdomen consists of eight segments, the siphon, and the saddle. Each segment has a unique setae pattern. The saddle is barrel shaped and located on the ventral side of the abdomen with four long anal papillae
protruding from the posterior end [4]. The siphon is on the dorsal side of the abdomen, and in Culex quinquefasciatus the siphon is four times longer than it is wide with multiple setae tufts