Construction pit (IMAGE) Emory University Caption Sampling for mosquito larva in the water of a manmade pit at a construction site made of simple earthern walls covered in plastic sheeting. Credit Photo by Gonzalo Vazquez-Prokopec Usage Restrictions Must include credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.