チビナガヒラタムシ ではありませんでした
chibi naga hiratamushikadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of チビナガヒラタムシ科

1. Was not a flat beetle.; Was not of the family Flatidae.

Past/Perfective
Negative
Polite
Formal Register