Complex sentence: Most of these are black and yellow; some are black and white (such as the bald-faced hornet, "Dolichovespula maculata"), while others may have the abdomen background color "red" instead of black.
Split into simpler sentences: Most of these are black and yellow; some are black and white like the bald-faced hornet, "Dolichovespula maculata". Others may have the abdomen background color "red" instead of black.