Idaho Arthropods | iNaturalist
Idaho Invertebrates | Idaho Fish & Game

Western Monarch Milkweed Mapper | The Xerces Society, Idaho Department of Fish and Game, Washington Department of Fish and Wildlife, National Fish and Wildlife Foundation, and US Fish and Wildlife Service

Insect Images | University of Georgia

BugGuide | Iowa State University

Bumble Bees of Montana | Montana State University

Monanta Field Guide | Montana.gov
Butterflies and Moths of North America

 

USDA Plants Database 
Lady Bird Johnson Wildflower Center
National Gardening Association
Audobon