Explanation of Names
Cerceris fumipennis Say 1837
Dark smoky brown wings. One creamy yellow band on the second abdominal segment. Three light creamy yellow spots on the face of the females and two on the face of the males.
This image shows a male and a female:
Both of them have many mites on the propodeum. (back of thorax) Here is another pair:
most records: Jul-Aug (BG data)
Larvae feed mostly on Buprestid beetles. (1)
Ground nesting. The entrance to the nest is a hole about the diameter of a pencil.
This species preys mostly on adult metallic woodborers (Buprestidae), including the invasive emerald ash borer. The wasp is even being employed to detect the presence of EAB. Please see this website
for more information.
Dube, M. and D. Chandler. 2017. Biology, prey, and levels of prey paralyzation by Cerceris fumipennis Say (Hymenoptera: Crabronidae) in New Hampshire. Entomological News, 126(5): 343-351.