california root borer - deadly thorns - and hissing like a cockroach - is a ferocious-biting scarab walking on a white background

abdomen animal antenna antennae background bark beetle biology bite bitingpainwalking borer boring brown bug california californicus closeup coarse cockroach conical danger deadly deciduous dry ecosystem elytra elytron entomology etymology eyes fauna ferocious ferociousbiting fierce hard hissing hurts insect isolated large long longhorn male mandibles orchards pest pronotum pupa reddishbrown root scarab small smooth spikes spines suture thorax thorns trees underground walking white wildlife wingcase wings