Don't forget to enlarge the pictures to take a closer look.
UPDATE: Ok, I've looked and looked in different guides and online to identify this one. It is a hairstreak. You all know that. There are so many different hairstreaks though. Some differences are just the markings and some may be the color of the eyes. It is sort of like looking at those books that have two pictures of the same thing and you have to look at what is different in them. Well, some differences are obvious at first glance and some you really have to look at. Here is another picture that shows another clue. I think this is a Dusky-blue groundstreak. What do you think?