Parelaphostrongylus tenuis (Nematoda : protostrongylidae) and other parasites of white-tailed deer (Odocoileus virginianus) in Costa Rica

Parasites were collected from 2 female white-tailed deer Odocoileus virgini anus) in the Area de Conservacion Guanacaste, Costa Rica, in early June 199 9. Both deer were parasitized by the ticks Amblyomma parvum and Haemaphysal is juxtakochi as well as the hippoboscid fly, Lipoptena mazamae, One deer a lso hosted the ticks Boophilus microplus, Ixodes affinis, and Anocentor nit ens. Both deer were infected by larvae of the nasopharyngeal botfly Cephene myia jellisoni, and the helminths Eucyathostomum webbi, Gongylonema pulchru m, Parelaphostrongylus tenuis, and Paramphistomum liorchis, whereas Setaria yehi, an undescribed species of Ashworthius, and Onchocerca cervipedis occ ur-red in single hosts. A cysticercus of Taenia omissa was found encapsulat ed in the lung parenchyma of I host. This is the first report of these endo parasites from Central America.