cockroach . labeled educational body structure scheme.

abdomen anatomy antennae biology blattodea body bug cercus cockroach compund creature diagram disgusting education entomology exterminate eye foreleg graphic gross head hindleg illustration infestation infested insect label leg mesothorax metathorax midleg nature nocturnal pest pesticide pests prothorax roach scheme segments species structure stylus swarm taxonomy thermite tropical vector wing zoology