Sand-roach
Guides
Arenivaga bolliana
Boll's sand cockroach, Boll's sandroach
Arenivaga bolliana is a species of desert cockroach in the family Corydiidae, native to North America. It belongs to a genus known for extreme sexual dimorphism, with females wingless and males fully winged. The species inhabits arid and sandy environments, reflecting the family's adaptation to harsh, dry habitats rather than the tropical moist conditions typically associated with cockroaches. Like other Arenivaga species, it is likely subterranean in habit and difficult to detect. The genus was revised in 2014, revealing substantial undescribed diversity, though A. bolliana itself was described in the 19th century.
Arenivaga hopkinsorum
desert cockroach, sand cockroach
Arenivaga hopkinsorum is a species of desert cockroach in the family Corydiidae, described by Heidi Hopkins in 2014 as part of a major revision of the genus Arenivaga. Like other Arenivaga species, it exhibits dramatic sexual dimorphism, with females appearing wingless and males possessing fully developed wings. The species inhabits arid environments in the southwestern United States and Mexico, where it contributes to decomposition despite limited plant matter. The specific epithet honors the Hopkins family, particularly referencing the author's father and brother.
Corydiidae
Sand Cockroaches, Sand Roaches
Corydiidae is a family of cockroaches in the order Blattodea, commonly known as sand cockroaches or sand roaches. The family was previously classified as Polyphagidae and contains approximately 40 genera divided among five subfamilies: Corydiinae, Latindiinae, Tiviinae, Euthyrrhaphinae, and Holocompsinae. Members are frequently associated with harsh, dry habitats including deserts and arid regions—environments not typically associated with cockroaches. Many species exhibit subterranean habits, making them easily overlooked. The genus Arenivaga (desert cockroaches) is particularly notable, with 39 new species described in a 2014 revision, expanding from 9 previously known species. The family has a worldwide distribution with significant diversity in North America, Asia, and other arid regions.