German Cockroach (Blattella Germanica)
They are light brown or tan in colour with two parallel black streaks running vertically on the shield which covers the head.
American Cockroach (Periplanta Americana)
They are reddish–brown in colour, with pale yellow marking above the head. These are large cockroaches not regular house dwellers; instead they prefer dark , moist and warm areas, especially around sewers and storage room.
Brown Banded Cockroach (Supella Longipalpis)
Generally looks similar to German roach, pale brown to brown in colour, except for the light coloured bands running horizontally across the wing base and abdomen.