Californian speckled Dunn

Nice.

I found two little things similar to this and did not know what it was, now seeing this in its spotting, have good tip. Thank you. :)

Oh and great shot

And yours is a female

there are so many subspecies. this one comes up in Concord, Ephemeroptera Plecoptera Trichoptera but they don't have the same coloring. The ones that do look like that are from the east but you never know. http://bugguide.net/node/view/199589/bgimage

mayfly