Top picture is probably a Black Swallowtail missing much of its hindwings; bottom image is a Great-Spangled Fritillary.

Middle image is male Plathemis lydia - Common Whitetail (dragonfly).

http://bugguide.net/node/view/603

Thank you so much for identifying them. By the way, just out of curiosity, how do we know the third one is not an Aphrodite Fritillary?

Thank you very much!

Not Atlantis because your image has no black outer FW margin; not Aphrodite because paler submarginal HW band is too broad. The broad paler tan HW band (as opposed to the darker cinnamon color of the inner hindwing) is a distinguishing feature of the Great-Spangled.

Got it. Thank you very much :)