There are more “Spot the. . . . ” features coming in, so I’ll put up one today at the expense of “Readers’ Wildlife Photos,” which I still need more of. This puzzler comes from reader Mark Sturtevant, who contributed yesterday’s photos of butterflies. I’ll put up the reveal at noon Chicago time, and I’d place this one in the “pretty hard” category. You’ll surely have to enlarge the photo to find the odonate.

Mark’s notes:

Reader Barbara Wilson had recently posted a very good ‘spot the dragonfly’ picture. I regularly go out to take pictures of insects, and I chanced upon an opportunity to do this as well. So, spot the dragonfly in this picture. Oh, and for fun natural selection decided to make this dragonfly green. Mwa ha ha haaa.’

As usual, if you find it by all means gloat in the comments, but please don’t reveal the location!