Japanese knotweed beetle - Itadorihamushi

...The larvae live in different locations, such as on leaves, on the ground, underground, in the leaf pulp (leaf mining), and on stems, and there are many pests, such as the cucumber beetle and the striped flea beetle. There are also beetles with many variations in their markings, such as the Japanese knotweed beetle (illustration). The adults of the spiny leaf beetle subfamily have many thorns on their bodies, and the larvae are leaf mining. ...

*Some of the terminology that refers to "Japanese knotweed leaf beetle" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…幼虫の生活場所も葉上，地表，地中，葉肉内(潜葉性)，茎などに分けられ，ウリハムシ，キスジノミハムシなどの害虫も多い。また，イタドリハムシ（イラスト）のように斑紋に変異の多いものもいる。トゲハムシ亜科のトゲハムシ類の成虫は体に多くのとげをもち，幼虫は潜葉性。…

※「イタドリハムシ」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報