John E. Woodmansee Photo: Tobacco hornworm on a tomato plant that has been attacked by a parasitic Braconid wasp. The white capsules on its back are the pupal stage of the tiny wasp. Braconid larvae ...

“For me, it was a road-to-Damascus type of moment,” James Truman, an entomologist, told me, recalling an encounter when he was sixteen. “My family had a summer place, a trailer, on the shores of Lake ...