These wasps will either create and provision individual brood cells partitioned with blades of grass, or create a communal area where multiple larvae feed and develop. The female hunts high in tree canopies where her prey occur. She stings the victim to immobilize it; clutching the paralyzed prey underneath her, she then carries it back to the nest.
Once a nest is provisioned with enough prey, she lays an egg. These wasps can produce one or two generations per year in the upper Midwest and Northeast regions.
The larvae hatch in the following days and consume the cached prey for the next four to seven days. When the food provisions are entirely consumed, each larva spins a cocoon and overwinters in the cocoon in a prepupal or pupal state. Development continues the following spring with the wasps completing pupation or emerging as adults in July.
Shown: An adult visits stiff goldenrod (Oligoneuron rigidum).
Region by region: What to do in your garden this month
from Houzz http://ift.tt/1Zqz2xq
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