Pleasing Fungus Beetle

Black spots on a blue beetle
Sat, Jun 27, 2009 at 2:00 PM
Hi – We were at Windy Point on Mt Lemmon in Tucson AZ at the end of May and spotted (get it? spotted?) this handsome fellow. I have never seen anything like him before. Can you identify him? I didn’t see his wings.
Tucson AZ

Pleasing Fungus Beetle
Pleasing Fungus Beetle

Hi Julie,
Your beetle is Gibbifer californicus, a Pleasing Fungus Beetle in the family Erotylidae.  The family members are known as Pleasing Fungus Beetles and your specimen does not have a more specific common name.  According to BugGuide, it “Southwestern United States: Kansas, Wyoming, Colorado, New Mexico, Arizona, south into Mexico ” and “Adults feed on nectar, pollen, and some fungi. Larvae feed on fungi that are attacking wood.”

Photo of author


BugMan aka Daniel Marlos has been identifying bugs since 1999. is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

Leave a Comment