When it comes to mantid feeding, glass climbers(lobster roaches) are a better choice than any of the blaberus spp. because they climb up to the top where the mantid is, the blaberus either dig in the substrate or don't move around enough to attract the mantids attention. I fed termite workers(R. tibialis) to 1st and 2nd instar S. lineola and they were able to bite off the tibia of the mantids legs! M. paykullii and P. agrionina on the other hand were capable of eating the termites without getting bit.