First report of Amblyomma humerale Koch (Acari: Ixodida: Ixodidae) from Bolivia, with a synopsis of collections of this tick from South American yellow-footed tortoise, Geochelone denticulate (L.) (Reptilia: Testudines: Testudinae)v. 105No. 5502–505
Robbins, R. G., Deem, Sharon L., and Occi, J. L. 2003. "First report of Amblyomma humerale Koch (Acari: Ixodida: Ixodidae) from Bolivia, with a synopsis of collections of this tick from South American yellow-footed tortoise, Geochelone denticulate (L.) (Reptilia: Testudines: Testudinae)." Proceedings of the Entomological Society of Washington, 105, (5) 502–505.