Sand Bee of the Genus Andrena sp. (image) Pensoft Publishers Caption Pollination is important for crops producing key nutrients for the human diet. Here a sand bee of the genus Andrena sp. forages on a peach flower in a garden around Lüneburg, Germany. Credit AM Klein, Leuphana University of Lüneburg. Usage Restrictions None 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.