|Description=The american cockroach, Periplaneta americana. Photo by Gary Alpert. |Source=http://www.uos.harvard.edu/ehs/pes_american_cockroach.shtml |Date=...
http://www.uos.harvard.edu/ehs/pes_american_cockroach.shtml Author Gary Alpert Other versions Derivative works of this file: American-cockroach mirror.png...
