It resembles a bug in the family Miridae, they usually have some sort of wings covering the abdomen but some have short wings or nymphs develop wings at a later stage.
This one reminds me of a Dicyphus sp. but I can't find one like it, and I can't see any evidence of wings. The head is similar, and it had a long feeding proboscis which it's stuck the bee with (metallic green bee).
http://bugguide.net/node/view/...
http://bugguide.net/node/view/...
http://bugguide.net/node/view/...
There are a few obscure families of insects which it doesn't seem to fit. There is a pattern on the abdomen which doesn't help unless someone is familiar with it.