Photo 49397128, (c) Franco Folini, some rights reserved (CC BY), uploaded by Franco Folini

Attribution © Franco Folini some rights reserved Uploaded by folini Source iNaturalist Associated observations Photos / Sounds What Willow Apple Gall Sawfly (Euura californica) Observer folini Date August 25, 2019 05:35 PM PDT Place Diamond Heights, San Francisco, CA 94131, USA (Google, OSM) Date Added August 26, 2019 06:27 PM CEST 2 IDs Research Grade View Sizes small medium large original