Photo 28939352, (c) Is Henderson, all rights reserved, uploaded by Is Henderson

Attribution © Is Henderson all rights reserved Uploaded by ishenderson Source iNaturalist Associated observations Photos / Sounds What Nearctic Blue Mud-dauber Wasp (Chalybion californicum) Observer ishenderson Date December 6, 2018 04:16 PM PST Place Humboldt State University, Arcata, CA, US (Google, OSM) Date Added December 7, 2018 10:30 PM UTC 4 IDs Research Grade View Sizes small medium large original