Goldenrod Gall Fly (Eurosta solidaginis) Eurosta solidaginis, known generally as the goldenrod gall fly or tephritid fly, is a species of fruit flies in the family Tephritidae. Source: https://www.inaturalist.org/observations/30166873 Related By Wade Hi. I’m Wade Murray, and like everyone with a personal website, mine is horribly, terribly out of date. On the Internet my handle is normally wademurray, but you can still find blime in some of the older dustier places. View all of Wade's posts.