These helpful guides are available online, but have been compiled here for easy use.
Insects
BugGuide.Net(link is external)
InsectIdentification.Org(link is external)
Natural History Museum - Database of the World's Lepidopteran Hostplants(link is external)
Butterflies and Moths of North America(link is external)
Arthropod Identification(link is external)
Bees
Bee Basics An Introduction to Our Native Bees(link is external)
The Biology and External Morphology of Bees (link is external)
FARMING FOR BEES Guidelines for Providing Native Bee Habitat on Farms (link is external)
Guide to Bumble Bees of the Western United States(link is external)
Ants
Dr. Eleanor’s Book of Common Ants(link is external)
Plants
Santa Clara River Natural History(link is external)
Wildflowers of the Santa Monica Mountains(link is external)
Calflora(link is external) - You can use Calflora's "what grow's here" feature to take a close look at what grows in the vicinity of the Santa Clara River.