Small larvae about 2 1.2 cm long. They have a well-developed head, a large thorax with no legs, and a segmented abdomen. When they moved, their body would bend then straighten quickly to move to the surface.
Still, shallow water from recent rain under various trees near Lake Dixon. There were frogs and mosquitoes on the water.
They have a common name of "wigglers" due to their movement in the water. These will develop through 4 instars before becoming pupa then adulthood.