Ptilonyssus Berlese and Trouessart 1889

Genus Ptilonyssus Berlese and Trouessart 1889 Ptilonyssus Berlese and Trouessart 1889: 128 ; Vitzthum 1935: 578 ; Cooreman 1946: 4; Castro 1948: 260; Pereira and Castro, 1949: 218; Zumpt and Patterson 1951: 77; Strandtmann 1951: 129; Zumpt and Till 1955: 69; Domrow 1969: 333 ; Pence 1975: 11 ; Butenko 1984: 156 ; Knee et al. 2008: 350 ; Dimov 2018: 74. Type species — Ptilonyssus echinatus Berlese and Trouessart 1889. Diagnosis — Mites with oblong body, length 380–760. Dorsal side of podosoma only with podosomal shield. Dorsal side of opisthosoma with only one of shields, either opisthosomal or pygidial one. Stigma with oblong peritremes and located dorsolaterally. Mesosomal shield present or absent. Poststigmal shield absent. Gnathosoma located terminally. Deutosternal denticles present or absent. Tritosternum absent. Sternal shield present or absent. Genital and anal shields present. Anus with anal shield located ventrally. Aspero present. Convexitas and spina coxae absent. Female setae are microchetes, male setae needle-shaped.