What's That Bug? does not endorse extermination

Subject: Domestic or foreign
Location: Santa Rosa, Ca
July 5, 2015 8:27 am
Found this one in our dining room in Santa Rosa, Ca. This is a first sighting.
Signature: Pat

California Prionus

California Prionus

Dear Pat,
This is a native species known as a California Prionus or California Root Borer.  According to BugGuide:  “Adults active summer through early fall; fly at dusk or in the evening.  Food Larva feed primarily on living deciduous trees (oaks, madrone, cottonwood) and are also recorded from roots of vines, grasses, and decomposing hardwoods and conifers. Will also attack fruit trees growing on light, well-drained soils (e.g. apple, cherry, peach).”  Especially males are attracted to lights, and your individual is a male as evidenced by his highly developed antennae. 

Wonderful!  We have all those trees you mentioned.  Bad enough we have to contend with Sudden Oak Death.  But, thank you very much for your response.

What's That Bug? does not endorse extermination
Location: Santa Rosa, California

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