They are exceedingly fast. Do not take any chances when working in the cage, feeding, misting, etc. I have had cepediana dive into bamboo only to jet back out when they feel disturbed. I take them to a secure, open room to do things other than feeding or misting. I will often cover the bamboo they are in securely with screen to prevent them from escaping. In the secure room, I have used a 32 oz. deli cup to catch them but a net may work better. I approach them slowly and methodically, hemming them into a corner or localized spot. I know others use mosquito netting. I do not work with ornata, but I imagine the cepediana are not as fast, but close enough. I'm not sure how inexpectata "rank," but they are faster than cepediana in my opinion (but I have only been working with them for a few months now).
Just don't take any chances. It would be good to get your bearing with other species. I'm not saying that to dissuade you, I just don't want you to have a disappointing experience.