Whartonacarus chaetosus (Brennan and Jones, 1961), comb. nov.

(Figs. 12–14)

Trombicula chaetosa Brennan and Jones, 1961: 193, fig. 11 (holotype in USNM, paratypes originally in USNM and RML). Toritrombicula (Whartonacarus) chaetosa, Vercammen-Grandjean 1965a: 59 .

Neacariscus (Whartonacarus) chaetosa, Vercammen-Grandjean & Langston 1976: 963, pl. 278.

Diagnosis. SIF = 7BS-N-2-3111.1000; fPp = B/N/NNN; fCx = 1.1.1; fSt = 2.2; fSc: PL> AM> AL; Ip = 1058– 1172; fD = (4–7)H-(24–35)-(20–29)-(12–22)-(10–20)-…; DS = 92–122; VS = 70–97; NDV = 167–214. Eyes large, 2 + 2; scutum rectangular, densely covered with small puncta; sensilla flagelliform, nude, sometimes with inconspicuous cilia; all scutal and idiosomal setae pointed; microtarsala I (f1) distal to tarsala; 3 genualae I (two in proximal and one in distal half of genu); nude mastitarsala III. Standard measurements of material examined given in Table 4.

Hosts. Microlophus peruvianus (Lesson) . New host: Microlophus atacamensis (Donoso-Barros) .

Distribution. Peru, Piura Region. Here this species is recorded in Chile, Atacama Region for the first time.

Material examined. Twenty seven specimens (ZIN collection Nos. 8222–8249) ex Microlophus atacamensis Nos. 19 and 20, CHILE: Atacama Region, Pan de Azúcar National Park, 2 and 5 April 2010, coll. D. González- Acuña & S. Muñoz-Leal.

Remarks. Given that the original description of this species is incomplete and its redescription made by Vercammen-Grandjean and Langston (1976) is hardly accessible, here we provide figures and measurements of our material (Figs. 12–14, Table 4).