The past couple weeks I have received numerous calls and inquiries about dragonflies. It is common for adult dragonflies to make an appearance this time of year. The last couple years, there has been more rain than the 10-year average in the panhandle of Nebraska. Due to an increase in habitat and food, dragonflies have done well. In fact, they have done so well that some people are actually concerned about their large numbers. However, what some people do not realize is that dragonflies are predacious. Fortunately, they feed on pest insects that also benefit from all of the rain that we have had, such as, mosquitoes and biting flies. They scoop them out of the air with the long setae that coat their legs. So, you see, it's a natural phenomenon and could be considered a balanced ecosystem process that benefits us greatly through the reduction of disease vectors -- dragonflies provide ecosystem services.