What bugs are Iowans seeing?

The term “hornet” has a technical meaning, and Iowa has only one species of hornet – the bald-faced hornet, which has black and white stripes and a white face. Bald-faced hornets aren’t aggressive and typically stick to wooded areas, where they make large, spherical paper nests, Donald Lewis, an Iowa State University professor of entomology, said. What Iowans are observing this spring are likely wasps and not hornets, Lewis said. There are two species that are active in the springtime – paper wasps and yellowjacket wasps. Paper wasps have long, slender brown bodies.

Mild winter ushers in wasp-ish spring for Iowans

An unwelcome buzz — wasps — this spring forced teachers to shutter classroom windows. Anecdotally, there seem to be more than usual hovering this spring, following a somewhat mild winter in Iowa, according to weather experts. Iowa State University professor of entomology Donald Lewis said he has heard from Iowans who have felt there were more of the insects than usual. He, too, suspects it was a “good winter” for the them. Gabrielle Smithman, a teacher at Merrill Middle School in Des Moines, experienced the effect of that good winter.