Stator chihuahua, S. limbatus, S. pruininus, S. pygidialis, S. sordidus, andS. vachelliaeare all continuously breeding, noneconomic species. To determine reasons for their host preferences, these species were cultured in the laboratory, then presented with nonhost seeds, most of which were hosts for other species ofStatorused in the study.S. limbatus, S. pruininus, andS. sordidusoviposited on a wide range of hosts, butS. vachelliaewas very selective in the quality of seeds that it oviposited upon, and it completed development in only two nonhosts.S. limbatus, S. pruininusandS. sordiduscompleted their development in 3, 9, and 20 nonhost seeds, respectively.S. sordidus, which has only three natural hosts, is unique in being able to survive in so many non host seeds. The seed coats ofCercidium floridum, Parkinsonia aculeata, and some other plants are formidable barriers to the entry ofStatorspp. Possible reasons for host preferences inStatorare given.