Broad-necked Root Borer
This impressive egg-laden, 2-inch long female Broad-necked Root Borer (Prionus laticollis) was attempting to lay her eggs when I discovered her. She repeatedly extended and retracted her ovipositor (pointed, egg-laying structure at tip of abdomen) in an attempt to probe the packed dirt in my driveway, but finally moved on to softer soil. Female Broad-necked Root Borers insert clumps of eggs into the ground. When the eggs hatch, the larvae tunnel downward to feed on the roots of a variety of shrubs and trees. In the spring they pupate, and adults, such as this female, emerge. This whole life cycle is thought to take three years.
This entry was posted on July 3, 2012 by Mary Holland. It was filed under Arthropods, Beetles, Egg laying, Insects, Invertebrates, July and was tagged with Arthropods, beetles, Broad-necked Root Borer, Coleoptera, Egg-laying, insects, Invertebrates, Ovipositor, Prionus laticollis.