The term 'bedbug' refers to two different species of insects, the CHINCH (Cimex lectularius) and the Cimex (Cimex hemipterus). The CHINCH is a small, reddish-brown insect that feeds on human blood and is found in beds, furniture, and carpets. The Cimex is a larger, brownish-gray insect that feeds on plants and is found in gardens and fields. Both species are considered pests and can cause discomfort and health problems if left unchecked.