Two male Rhagoletis walnut flies joust on an artificial walnut in a lab cage at the University of Arizona. What's an artificial walnut? It's a painted ping pong ball. As long as the ball is the right color and shape, the flies apparently don't mind.
Biologist Jeremy Davis uses these flies to…
Megacyllene robiniae - Locust Borer
Goldenrod flowers are a magnet for late summer insects, and among the most spectacular attractions is the locust borer, a wasp-striped longhorn beetle.Â They gather on the flowers to mate and to feed on pollen.
Megacyllene larvae are pests…
A young adult Comperia merceti, a parasitoid wasp in the family Encyrtidae, emerges from the egg case of its cockroach host.
photo details: Canon MP-E 65mm 1-5x macro lens on a Canon EOS 20D
ISO 100, f/11, 1/200 sec, flash diffused through tracing paper
This tiger moth caterpillar may appear normal at first glance.Â But a closer look reveals it to be plagued by dozens of wasp larvae, slowly consuming it alive as they cling to its back:
photo details (top photo): Canon 100mm f2.8 macro lens on a Canon EOS 50D
ISO 200, f/7, 1/200 sec, indirect…