Flatheaded Metallic Wood Borer
I have posted pictures of beetles that are closely-related to this one (and maybe even the same species) twice before, but it is such a striking beetle that I just can’t resist photographing it again. This is one that landed on Sandy while she was doing the first lawn-mowing of the season on May 28, 2012.
And if you are thinking, “That beetle doesn’t look so flat-headed to me!”, that’s because the “flatheaded” in its name refers to the shape of the larva’s head, not the adult’s.
The metallic sheen is particularly strong on the underside. I really have no idea what function the metallic color may have on this beetle’s life (if it is a warning color, it seems odd that it is strongest on the underside, where a predator won’t see it), but it certainly is pretty.
Comparing it to my fingertip, you can see that it is pretty decent size for a beetle. Looking closer at the face, we can also see that it is pretty intricately sculptured.
The larvae eat wood, but I’m not finding anything that says what the adults eat. Probably pollen and nectar, but I could be wrong on that. The mouthparts are what you would expect for something that ate pollen and nectar, though – not too pronounced, and not really suited for eating much else.
So, that said, I’d just like to reiterate my reason for posting this beetle species again:
 The last time I posted this, I misspelled the genus name as “Dicera”. Which made it hard when I then tried searching on this name, and found nothing. It’s “Dicerca”, with two “c”s.
 The other postings aren’t misspelled any more – I just went back and fixed them.