After a morphological analysis of several tarantula specimens of the
genus Eupalaestrus, including recently collected specimens from
previously unrecorded localities, we herein describe two new species.
They differ from congeners by the presence of a large area with
spiniform setae between the coxae IV. They differ from each other
in general size and in the thickening of the tibia and metatarsus IV.
Eupalaestrus crassimetatarsis sp. nov. is distributed in the Brazilian
States of Paraná, Rio Grande do Sul and Santa Catarina, and in
Misiones Province in Argentina. Eupalaestrus roccoi sp. nov. is distributed
in the Brazilian state of Rio Grande do Sul. These natural
grasslands are under threat from rapidly encroaching arable and