noun
Yakudza vicarius (species of moth)
A species of moth in the family Cossidae; the name is typically written in katakana.
ボクトウガは夜行性の蛾で、幼虫は木の幹に穴をあける。
The Yakudza vicarius is a nocturnal moth whose larvae bore into tree trunks.
The Japanese name ボクトウガ is derived from the kanji 木蠹蛾, literally 'wood-boring moth'. The exact historical derivation is uncertain.