Life … Animals Arthropods Insects Hymenopterans Mason, Leafcutter, Carder, and Resin Bees Mason Bees Melanosmia Osmia calla species 6 observations Osmia calla Osmia calla Supported by All 17 native plantssupport it in the US Nectar plants Plants whose flowers it visits Hooker's Onion, Dorr's Sage, Silverleaf Phacelia, Nettle-leaf Giant Hyssop 17 Close
