Beach Bug

Reader Jim Phillips dug through his photo archives and found a whole host of great photos for us. This one’s a little small, but I think it makes a great wallpaper. I am very familiar with this little beetle, but I honestly have no idea what kind of bug it is–or even, really, if it is actually a beetle.
This bug is common in Utah, and Jim got a photo of it in New England. I assume this means it is widespread across North America.
Any takers on what it is?

Jesse said,
December 8, 2007 @ 6:55 pm
It’s the same shape as a milkweed beetle, so possibly a relative?
b13 said,
December 8, 2007 @ 11:29 pm
Almost looks like a lightning bug. Does its rear light up yellow?
tceisele said,
December 9, 2007 @ 4:27 am
It’s a variety of Skeletonizing Leaf Beetle. Specifically, it looks exactly like a Goldenrod Leaf Beetle, Trirhabda canadensis. I thought it was a relative of the Goldenrod Soldier Beetle Chauliognathus pennsylvanicus at first, because the wing covers looked kind of leathery rather than shell-like. But, the head didn’t look right and the colors were inverted (it needed to be a black stripe down the middle and pale on the sides, not pale in the middle and dark on the sides).
I love Bug Guide, because when you start with a mistake, but it is the same mistake that a lot of other people make, you’ll often find the right thing because of the comments made to correct them. Like here, where I did a search on “soldier beetle”, and a picture of the right beetle evidently came up because somebody had commented that it was not a soldier beetle.
jim phillips said,
December 9, 2007 @ 3:04 pm
It looked like a lightning bug to me, but it’s rear end wasn’t right. The shot was taken at Barnegat Light in New Jersey, not in New England.