In the last week I have found a black insect feeding at night on my astilbe and lady's mantle blossoms alongside asiatic garden beetle. It is about 1/2 inch long, skinny, black, with wiggly antennae in front and more antennae (or spiky things?) in the back. It has one segmented section which allows it to bend/curve, and a separate head or thorax. Any ideas? I can try to get a picture tomorrow if no one knows. thanks.