| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Thiacidas mukim | (Berio, 1977) | species | Accepted | ||
| Thiacidas mukim fuscomukim | Hacker & Zilli, 2010 | subspecies | Accepted | ||
| Thiacidas mukim mukim | (Berio, 1977) | subspecies | Accepted | ||
| Thiacidas nigrimacula | (Pinhey, 1968) | species | Accepted | ||
| Thiacidas occidentalis | Hacker & Zilli, 2010 | species | Accepted | ||
| Thiacidas orientalis | Hacker & Zilli, 2010 | species | Accepted | ||
| Thiacidas permutata | Hacker & Zilli, 2007 | species | Accepted | ||
| Thiacidas politzari | Hacker & Zilli, 2010 | species | Accepted | ||
| Thiacidas postalbida | (Gaede, 1939) | species | Accepted | ||
| Thiacidas postica | Walker, 1855 | species | Accepted | ||
| Thiacidas robertbecki | Hacker & Zilli, 2007 | species | Accepted | ||
| Thiacidas roseotincta | (Pinhey, 1962) | species | Accepted | ||
| Thiacidas roseotincta albata | (Wiltshire, 1994) | subspecies | Accepted | ||
| Thiacidas roseotincta roseotincta | (Pinhey, 1962) | subspecies | Accepted | ||
| Thiacidas sanguinicollis | (Schultze, 1931) | species | Synonym | ||
| Thiacidas schausi | (Hampson, 1905) | species | Accepted | ||
| Thiacidas senex | (Bethune-Baker, 1911) | species | Accepted | ||
| Thiacidas smythi | (Gaede, 1939) | species | Accepted | ||
| Thiacidas somaliensis | Hacker & Zilli, 2010 | species | Accepted | ||
| Thiacidas stassarti | Hacker & Zilli, 2007 | species | Accepted | ||
| Thiacidas subhampsoni | Hacker & Zilli, 2010 | species | Accepted | ||
| Thiacidas submutata | Hacker & Zilli, 2007 | species | Accepted | ||
| Thiacidas triangulata | (Gaede, 1939) | species | Accepted | ||
| Thiallela grandis | (Balinsky, 1991) | species | Accepted | ||
| Thiallela maculata | (Balinsky, 1991) | species | Accepted |