Which is Which

California has many insect species, but do you know which insects you see are native to California, or are introduced species? Do you know a “good insect” from a “bad insect”? To learn a little bit about native, introduced, good and bad insects, check out the pictures and see if you can tell “Which is Which.”

This website provides several ways to contact a state agency to identify your specimen. Look for the downloadable app to report suspect insects; an electronic form to fill out and send; or a link to each county’s agricultural commissioner or extension offices.