[smt88]

Reacting to harm is not the same as suffering. As far as we know, suffering requires nerves and cognition that mosquitoes don't have (not even close).

[arapacana]

yes, as far as you know from your 1-sample subjective experience of being a human being, that other beings with nervous systems don't suffer.

[deadbeeves]

Insects have nervous systems. Nearly all animals do.