Raised with care from my personal colony! Hissing Cockroaches (Gromphadorhina portentosa) are large, easy to care for, and make great pets! *If temperatures above 80F or below 30F please message me to have them held at the post office to guarantee live arrival* Hissing cockroaches (Gromphadorhina portentosa), also known as Madagascar hissing roaches or hissers, are relatively large insects that are known for their ability to make noise and their ease of handling. Hissing cockroaches make ideal insect pets, as they are easy to care for, inexpensive, and make interesting captives.Require room temperatures cannot live in freezing temperatures or extreme high temperatures.