Bright red females and orangish nymphs of Ehrhorn's oak scale, Mycetococcus ehrhorni, and pale mycelia of an associated fungus, Septobasidium canescens, on coast live oak.

Bright red females and orangish nymphs of Ehrhorn's oak scale, Mycetococcus ehrhorni, and pale mycelia of an associated fungus, Septobasidium canescens, on coast live oak.; Riverside County, California Credit: Raymond J. Gill
Credit: Raymond J. Gill