The Beetle Hunter

Cerceris fumipennis, a native non-stinging wasp, can help entomologists with early detection of the destructive exotic emerald ash borer. This ground-dwelling wasp provisions its nests with buprestid beetles, including emerald ash borer when present. Cerceris can only be found during the months of July and August.

The Maine Forest Service is currently looking for colonies of this wasp. For those who would like to assist us, here is some information to help you find colonies and report your findings.

July 14th 2008: Cerceris should be active throughout much of Maine from now until late summer. The best time to look for it is during mid-day on a sunny day (more...).

July 2008