Ceratophyllidae
Thrassis acamantis (Rothschild, 1905)
Thrassis aridis Prince, 1944
Thrassis arizonensis (Baker, 1898)
Thrassis augustsoni Hubbard, 1949
Thrassis bacchi (Rothschild, 1905)
Thrassis fotas (Jordan, 1925)
Thrassis francisi (C.Fox, 1927)
Thrassis pandorae Jellison, 1937
Thrassis peninsularis Lewis, 1994
Thrassis petiolatus (Baker, 1904)
Thrassis spenceri Wagner, 1936
Thrassis stanfordi Wagner, 1936
