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 most commonly encountered North American leaf-footed bugs are probably those of the genus Leptoglossus. Eleven Leptoglossus species inhabit the U.S. and Canada, including the western conifer seed bug (Leptoglossus occidentalis) and the eastern leaf-footed bug (Leptoglossus phyllopus).