The Fragile Forktail may be the most distinctive Forktail species (genus Ischnura) in New England, but according to one resource* the most common species is likely the Eastern Forktail (I. verticalis). The orange and black individual above is a young female – older females take on an all blue-gray appearance (see the BugGuide for a fine example). Males are green and black, with two mostly blue segments near the ends of their abdomens. These damselflies measure approximately one inch from end to end.
*A Field Guide to the Dragonflies and Damselflies of Massachusetts by Blair Nikula, Jennifer Loose, and Matthew Burne (2007)