Corydiinae
Corydiinae is a subfamily of the order Blattodea (cockroaches). Many are known as sand cockroaches. The subfamily, comprising about 20 genera, contains half the genera in Corydiidae. One prominent species is the desert cockroach, Arenivaga investigata. Genera
The Cockroach Species File lists:
 Anisogamia Saussure, 1893
 Arenivaga Rehn, 1903
 Austropolyphaga Mackerras, 1968
 Eremoblatta Rehn, 1903
 Ergaula Walker, 1868
 Eucorydia Hebard, 1929
 Eupolyphaga Chopard, 1929
 Hemelytroblatta Chopard, 1929
 Heterogamisca Bey-Bienko, 1950
 Heterogamodes Chopard, 1929
 Homoeogamia Burmeister, 1838
 Hypercompsa Saussure, 1864
 Leiopteroblatta Chopard, 1969
 Mononychoblatta Chopard, 1929
 Nymphrytria Shelford, 1911
 Polyphaga (cockroach) Brullé, 1835
 Polyphagina Chopard, 1929
 Polyphagoides Mackerras, 1968
 Therea (insect) Billberg, 1820

References

Corydiidae
Cockroaches