A review of Chilean chiggers (Acari: Trombiculidae), with the description of a new genus and ten new species
A.A. Stekolnikov, D. González-Acuña
Zootaxa, 3964 (1): 1-43 (2015).
S U M M A R Y
A new genus and species of chigger mites, Diaguitacarus choapensis gen. et sp. nov., is described from four lizard species
of the genus Liolaemus in Choapa Province of Chile. Eight new chigger species are described from lizards of the genera
Liolaemus, Phymaturus (Squamata: Liolaemidae), and Microlophus (Squamata: Tropiduridae), in Arica and Parinacota,
Atacama, Coquimbo, Valparaíso, and Biobío Regions: Eutrombicula nerudai sp. nov., Eutrombicula mistrali sp. nov., Eutrombicula
picunche sp. nov., Microtrombicula mapuche sp. nov., Parasecia molini sp. nov., Paratrombicula philippii
sp. nov., Morelacarus jorgei sp. nov., and Morelacarus camanchaca sp. nov. A new species Proschoengastia antarctica
sp. nov., which is described from American mink Neovison vison on Navarino Island (Region of Magallanes and Antártica
Chilena), is the most southerly chigger species, found at the distance of about 1000 km from the continent of Antarctica.
Whartonacarus chaetosus (Brennan and Jones, 1961) comb. nov., which was described from Peru, is for the first time
recorded in Chile (Atacama Region) and on Microlophus atacamensis. A new combination Proschoengastia macrochaeta
(Brennan and Jones, 1961) comb. nov. is established. The genus Morelacarus Vercammen-Grandjean, 1973 previously
known from Mexico and southwestern USA is for the first time recorded in Chile. A review of all previously described
Chilean chiggers and a key to Eutrombicula species from Chile are provided. In all, 22 species from 13 genera were recorded
in Chile, of which only one species (Whartonacarus chaetosus) is known outside the country.