I think they are... but I don't know.
On our lake Superior backpacking trip, everything is out to get you.
There's mosquitoes in swarms, biting sable flies, horseflies, these things that look like lake flies but aren't (IDK if they bite you but they randomly fly out and assault you), and gnats and things that look like gnats. It's awful. The only solution is bug spray lotion or the super pungent smelling stuff that I actually grow to love because of the relief it provides. It's also deet free.
https://www.amazon.com/REPEL-Eucalyptus-Natural-Insect-Repellent/dp/B07BWWQNL9
I'll spray it all over my clothes and hair as well. Everyone is coated in a few layers of mosquito spray by the end of it all. And yet I still enjoy it all.