While much information can be gleaned by testing the blood itself (drawn from a vein by phlebotomy), it is sometimes necessary to examine the source of the blood cells in the bone marrow to obtain more information on hematopoiesis; this is the role of bone marrow aspiration and biopsy.
From Wikipedia, the free encyclopedia. The wheel bug (Arilus cristatus), in the family Reduviidae, is one of the largest terrestrial true bugs in North America, being up to 1.5 inches (38 mm) in length. A characteristic structure is the wheel-shaped pronotal armor.
The Wheel Bug operates primarily from summer into fall and feeds on other insects including any slow-moving caterpillars. Its diet forces the Wheel Bug to reside primarily in leafy areas like forests, parks or shrubbery. Females lay eggs on twigs and branches in clusters that almost resemble a honeycomb shape.