Cyclosternum fasciatus Valerio, 1982 Davus fasciatus, commonly known as the Costa Rican tiger rump, is a species of a new-world tarantula native to Costa Rica.

This is a terrestrial species with a maximum legspan of 12 centimetres (4.7 in), which makes it a rather small tarantula species, yet it is one of the largest of its genus.

They require a 10-gallon to 15 gallon enclosure as adults and juveniles can be kept in much smaller containers like critter keepers or deli cups.

Humidity should be low, although helpful to have a water source available or mist on occasion.

Generally, in captivity, the species often sold as D. fasciatus or the synonym Cyclostermum fasciatum feed upon a variety of pesticide-free insects such as locusts, crickets and cockroaches.