くわきしらみじゃなかったです
桑木虱じゃなかったです
kuwaki shiramijanakattadesu

Noun
Desu Copula

The polite, past negative form of くわきじらみ

1. Wasn't a louse on mulberry wood.; Wasn't a wood louse on mulberry.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana