Bug on milkweed
What species is this bug (see blurry pics) that I found on my whorled milkweed (Asclepias verticillata). It does not seem like an adult because the exterior is soft, and it looks somewhat like a ladybeetle larva. There are also oleander aphids (Aphis nerii) on my whorled milkweed and various life stages of milkweed bugs (Tetraopes tetrophthalmus) on the nearby butterflyweed (A. tuberosa). I am removing the aphids and the milkweed bugs, but would like to know whether the unidentified bug is a beneficial bug or a pest. Thanks.
This looks like Swamp Milkweed Leaf Beetle Labidomera clivicollis.
Here are photos for comparison: http://bugguide.net/node/view/6165
(if the photos don't come up, search the name on that website)
If the plant is established, they are not of concern. You could pick them off if you like.