The USGS Native Bee Inventory and Monitoring Program is program run by biologists with the U.S. Geological Survey in Maryland. Part of their work is to develop identification tools and keys for native bee species by creating accurate and detailed pictures of native bees and the plants and insects they interact with. The biologists set up a mini studio surrounded by a styrofoam cooler with a black background to make their macro shots, stacking anywhere from 30 to 300 photos to get an image in focus. They have shared their collection of more than 1,200 photos online, from whuich I've selected the following 20 below.