I have heard that male B. rothi can differ in color. My B. rothi have recently started to mature and I have two different color forms of males, tan and black. I was not surprised but one thing puzzles me. The tan male's wings extend all the way to the end of his abdomen while the black males only go a little past half way. Can anyone tell me if this is normal. I will be posting some roach pictures tonight in the photo gallery and you will be able to see the difference. Any insights?