Megachile spp.
Description, biology and damage Leafcutting bees are about 0.4 inch in length, black with white stripes and look like small bumblebees. Female leafcutting bees remove smooth oval, circular or semicircular notches from the edges of leaves of roses and other plants. These leaf pieces create protective cells for raising their young. Leafcutting bees are important pollinators and seldom do major harm to plants.