地じ虫むし

noun

scarabaeid beetle grub

Specifically refers to the soil-dwelling larva of scarab beetles, such as the Japanese beetle or cockchafer. Often considered a garden pest.

• 庭にわの土つちを掘ほったら、地じ虫むしがたくさん出でてきた。

  When I dug up the garden soil, a lot of beetle grubs came out.

noun

soil-dwelling insect; ground insect

Broader, less common use for any insect or worm-like creature living in the soil. The specific sense (beetle grub) is more typical.

• 地じ虫むしには、コガネムシの幼よう虫ちゅう以い外がいにも様さま々ざまな種しゅ類るいがいる。

  Besides scarab beetle larvae, there are various other kinds of soil-dwelling insects.