| abstract | Andalgalomacarus, n. gen., with A. paraguayensis, n. sp., as type species and Paratrombicula, n. gen., with P. enciscoensis, n. sp., as type species are described from small mammals collected in Paraguay. Paraguacarus abrelli, Microtrombicula pearsoni, and Quadraseta brennani are described from specimens collected from small mammals in Paraguay. Eutrombicula batatas, Loomisia peruviensis, and Microtrombicula nicaraguae are reported for the first time from Paraguay. |