钻心虫

1. • boring insect
2. • snout moth's larva (Aphomia gullaris or Plodia interpuncuella or Heliothus armigera etc), major agricultural pest

Character by character

• 钻(zuān)drill
• 心(xīn)heart
• 虫(chóng)lower form of animal life, including insects, insect larvae, worms and similar creatures