Looks like a stink bug nymph. Exactly which stink bug I am unsure of because Norton's search sucks (if you think Google is bad about featuring paid sites, Norton's is worse, they tend to only show sites that sell stuff - but they are "verified safe" sites. Finding actual information is not anywhere at the top 90% of the list. Doesn't help that stink bugs and their nymphs are not uniform in how their coloring is dispersed, even in a given variety. It could possibly be a green stink bug nymph. It looks like it has red shoulders in your pic, so that is what I'm gong with
99 Has been on the warpath since we began seeing them. Not many survivors once she grabs the flyswatter! Anyway, I don't think they are a stink bug (thankfully) as there is absolutely no residual smell from their lifeless squashed carcasses....... But they do look like the images bogieb posted.......