Mayfly naiad.

Found in a brook using a dip net after stirring some stones on the bottom of the brook. The location was close to where this brook empties into the ocean, just a few meters upstream from the ocean's high tide line although the tide was low when I found this creature. I put the organism into a shallow container of brook water for the photos and returned it to the brook afterwards.

Found in a sweep under a lily pad using an aquatic net. Placed in a styrofoam container and then a clear plastic container for the photos. In the containers, it was normally swimming on its back (white side down) but sometimes turned over and even tried to climb out of the container water. Returned to the pond after the photos.

Found in a sweep under a lily pad using an aquatic net. In the photo with a black background it was not submerged in water. In the photos with the white background it was floating in water in a styrofoam container. This was very jelly like in nature.

I found this larva swimming in a wheelbarrow filled with stagnant rain water. I moved it to a smaller container for these photos. It was swimming under water for the photos. Collected on August 26 and photographed the next day.

Found in a net used to sweep along the shoreline of a small pond. Photo taken while this was swimming in a container after being caught. Photographed 2 hours after found. Main body 1mm; 2mm including tail 'feathers'.

Found lots of these swimming in a flower pot that was filled with stagnate rainwater. I moved this to a small container of water. It was underwater and swimming during the photos. A mosquito pupa has been suggested to me.

Caught in a net by sweeping the water along the edge of a small pond. Moved it to a small container of water and photographed it a couple hours later. It was swimming underwater for the photos (except the ventral view). It was too large to get the entire body and all legs in the image with the 1x-5x macro lens that I was using.

Caught in a net by sweeping the water along the edge of a small pond. Moved it to a small container of water and photographed it a couple hours later. It was swimming underwater for the photos. I believe that it is a Damselfly naiad.

A mayfly naiad. Found using a dip net in a pool of clear, vegetation-filled water, in a small marshy area. The photos were taken while the arthropod was submerged in a surface-tension created 'bubble' of water.

Found using a dip net in a small bog hole. The photos were all taken with the naiad submerged in water on a styrofoam plate. In the photo where the naiad was on its back, the end of its 'beak' is just out of the surface of the water. You can see the surface tension of the water around the tip of the 'beak'.

Found using a dip net to sweep a small bog hole. There were several of these found with one sweep of the net.

Perhaps this is a midge pupa. It looks a lot like this:
http://bugguide.net/node/view/268456