Bug bite help please :-)

Hi guys!

This past Saturday, I was lying outside in Delaware on my stomach on a lounge chair and felt a bit of a sting/pinch on my chest. I looked down and there looked to be a small, black, winged (ant-type), insect, which I quickly flicked off. Since then, the area has gotten a bit redder and has a somewhat more rough texture.

Posting because I’m just hoping to see if anyone knows what it looks like/could be. I’m thinking its’s probably nothing to worry about, so just give it a few days and see if it gets better. There don’t look to be any large bite marks/punctures. There are maybe two tiny little white dots. And I know I would have noticed a tick.

Any advice appreciated!