From carpet beetles to ladybugs to palo verde beetles, here's what to know about the most common beetles in Arizona and why they get in your house.

Last year, Brad Olsen, owner of Urban Desert Pest Control in Phoenix, got about 30 calls all summer about black beetles. This year, he's getting over 30 calls a day.

Reports of "bug-like organisms" are latching on and killing trees and other plants across Southern Arizona. They are called eriophyid mites and they aren't grown or planted, but they are spread by ...