Three mite species of the genus Neharpyrhynchus (Acariformes: Harpirhynchidae) were recorded on wild birds represented by new hosts in Paraguay: Neharpyrhynchus trochilinus ex Chlorostilbon lucidus (=aureoventris) (Apodiformes: Trochilidae), Neharpyrhynchus tangara ex Paroaria capitata and P. coronata (Passeriformes: Thraupidae), and Neharpyrhynchus aff. spinus ex Setophaga (=Parula) pitiayumi (Passeriformes: Parulidae). Records from C. aureoventris, P. capitata, P. coronata and P. pitiayumi represent new host-parasite associations. Mites of this genus were recorded in Paraguay for the first time.

Two mite species of the genus Neharpyrhynchus (Acariformes: Harpirhynchidae) were recorded on wild birds in Peru: Neharpyrhynchus trochilinus from Amazilia lacteal, and A. chionogaster (both Apodiformes: Trochilidae) and Neharpyrhynchus tangara from Thraupis episcopus (Passeriformers: Thraupidae). Records from A. chionogaster and T. episcopus represent new hostparasite associations. Mites of this genus were found in Peru for the first time.