This past fall I noticed a lot of surface strikes by smaller LMB. Lots of them. I started looking hard at the surface to see what was floating and saw a bug come out of the water and fly away. Then another with a bass right behind that almost picked it off 6 inches out of the water. One of the bugs flew around a few laps and landed back in the water. Finally, one came out and I tracked it as it flew around and landed right on the water's edge. It was, I am pretty sure, a Backswimmer. Fascinated I watched for another half an hour where many seemed to get eaten right as they left the water and others made it.
jim