• 恙虫つつがむし

  chigger, jigger, harvest mite (any mite of family Trombiculidae)

• 微恙びよう

  indisposition, ailment, slight illness

• 恙無いつつがない

  well, in good health, safe, free from accident

• 赤恙虫あかつつがむし

  scrub typhus mite (Leptotrombidium akamushi)