Some other basic characteristics is that they are wingless, unlike most cockroaches.
They make strong pets and despite their alien-like appearance and their bad reputation I would highly suggest them. However, before you think about purchasing one check to see if your state requires a permit to either own or breed cockroaches. This is to prevent one from getting into the environment and becoming a non-native species. This is mainly in southern states. If you can make hissing cockroaches you pets they are excellent for reptile owners because they can be bread and used as feeder insects as well as a pet.
As far as their appearance, I have included a picture for a reference. They are a mixture of blacks, browns and even orange. They are the largest species of cockroach, ranging from 2-3 in. as adults. The cockroach in the picture above is a male. You can tell by the protrusions that look like horns above his head. Females only have small bumps. These "horns" are used in defense and mating. Though it is hard to see in this picture you can see some of the black spots on his abdomen that he uses for hissing. Well there's a crash course on Madagascar Hissing Cockroaches.
Check back for more news on my pets as well as a crash courses on Tarantula's and Avicularia Versicolors and lots more! Make sure to follow and leave any questions in the comments and I will be glad to answer them in my next post!