Corydiinae
| Corydiinae Temporal range:  | |
|---|---|
| Polyphaga pellucida in the Saint Petersburg Zoological Museum | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Insecta | 
| Order: | Blattodea | 
| Family: | Corydiidae | 
| Subfamily: | Corydiinae Saussure & Zehntner, 1893 | 
| Synonyms | |
| Polyphaginae Saussure, 1864 | |
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.