Wasps are often gangly, delicate looking creatures. Why they have the thread thin stalk leading to the abdomen is mysterious, but there is a whole group called "thread waisted wasps". While wasps will kill other insects to feed their young, it is not unusual for them to nectar on flowers like a bee.
Below a mud dauber wasp takes off from a salt heliotrope flower.
black and yellow mud dauber wasp (Sceliphron caementarium)
These small, delicate wasps are typically nocturnal and can often be seen around street lamps or other lights. This photograph resulted from an experiment in which the camera automatically recorded whatever came into range on a warm Texas evening. It appears very alien to me, and I love the body attitude as it flies toward the camera.