lateralis are only a pest species if they escape, which is easily preventable. Even if they do escape, they need fairly warm environments to breed and mature. Make sure you keep them in a very smooth sided, tall container, and monitor feeding. Sometimes you have to be quick and willing to grab em, but I've never had a problem with that. I tend not to use B. dubia for feeders, for the reasons Ranitomeya pointed out. They do work pretty well if your mantis takes food from tongs, however.