A scentless plant bug (Niesthrea louisianica) which has clear wings. Here, the bottom tips can be seen easily. It was feeding on rock rose (Pavonia lasiopetala) seeds which is in the Malvaceae Family.
Several stages of this bug. I can see at least three stages of ages here.
rose of sharon buds
found @ the Zilker Botanical Gardens in Austin, Texas
Found infesting my Rose of Sharon, and has eaten away most of the leaves, too!
Niesthrea louisianica, early Oct. 2012, AR. zone7b.