This wedge shaped little bug is the Eight-Spotted Tumbling Flower Beetle (Hoshihananomia octopunctata) and they are found throughout Eastern North America. They are easily overlooked because of their diminutive size and at just 1/4 of an inch in length it is easy to see why. The wings and thorax are dark with distinct yellow markings. The head is flattened and wide and the abdomen comes to a point. They are found most anywhere flowers are found including gardens, meadows, prairies along roadsides and open fields. The adults eat pollen and nectar especially that of Queen Anne's Lace and the larvae apparently eat the plant material on which they are reared. Very little is reported on their lifecycle, although it is known that the female will lay her eggs on or near decaying pithy wood of hardwood trees. The resulting offspring feed on this decayed wood or on the fungus associated with the dying tree.
(Photo by: Steve Scott)
These beetles get their common name from their habit of "tumbling" off flowers and feigning death when disturbed.