This project would not have been possible without the help and support of a large number of people. I would like to thank my graduate committee, Michael Ivie, Kevin O’Neill, and Casey Delphia for valuable feedback throughout the project. Tyler Kelly, Paloma Amaral, and Hannah Bares assisted with fieldwork. Tyler Kelly and Paloma Amaral also helped process specimens. Wayne Kasworm, Tabitha Graves, Mike Giesey, Kristina Boyd, and several anonymous Lincoln/Sanders County locals helped locate huckleberry sites. Matt Lavin answered all my plant taxonomy questions. Justin Runyon helped identify the Diptera. Casey Delphia, Harold Ikerd, and Terry Griswold helped identify the Hymenoptera. David Smith helped identify the Tenthredinidae and is co-author on the description of the new Pristiphora species. Richard Brown identified most of the Lepidoptera and Sangmi Lee identified the Gelechiidae. Christopher Dietrich identified the Typhlocybinae and shared known Typhlocybinae host plant records. Lauren Kerzicnik identified the spiders. Frank Etzler, Charles Hart, Vinicius Ferreira, and Micheal Ivie helped identify the Coleoptera. The project was funded through a grant from the Montana Department of Agriculture's Specialty Crop Block Grant Program titled "Huckleberry Challenges: Pollinator Mysteries, Pests and New Invasive Threats." This is a contribution of the Montana Agricultural Experiment Station.