| abstract | A new quill mite Torotrogla emberizae sp. nov. (Acariformes: Syringophilidae) parasitizing the Chestnut-eared Bunting Emberiza fucata Pallas, 1776 (Passeriformes: Emberizidae) in Japan is described based on the external morphology and DNA barcode data (mitochondrial cytochrome c oxidase subunit I sequences, COI). Females of T. emberizae sp. nov. differ from T. volgini Skoracki and Mironov, 2013 by having the short, wide and blunt-ended hypostomal protuberances (vs long, thin and sharp-ended), setae h1 ca. twice shorter than f1 (vs h1 longer than f1), the fan-like setae p’ and p” of legs III–IV provided with ca. 10 tines (vs 7–8 tines) and lengths of setae vi 70–105 (vs 55–65), ve 105–135 (vs 85–90) and h1 55–60 (vs 95–120). |