* Helenicula cf. simena (Hsu and Chen, 1957)

Material examined. Vietnam: Tuyen Quang (near Na Hang)— Dremomys ornatus (April 2018, 1 larva), SƠn La (Muong Coi)— Bandicota sp., Leopoldamys neilli (Marshall) (AB, December 2011, 7 larvae).

Distribution. China, Thailand, Vietnam: Thái Nguyên — Rattus tanezumi (= R. flavipectus), Crocidura attenuata (Schluger et al. 1960c); Quảng Ninh (Cǻm Phả)— Tupaia belangeri (= Tupaia glis modesta) (Grochovskaja 1967); Bắc Giang, Hòa Bình, Nghệ An, Bình Thuận, Gia Lai, Đắk Lắk, Lâm Đồng (Chau et al. 2007; Stekolnikov 2021). Hosts with no locality indicated: Gallus gallus dom ., Centropus sinensis (Stephens), Lanius schach Linnaeus, Pellorneum ruficeps Swainson, Pomatorhinus hypoleucos tickelli (Blyth), Dicrurus hottentotus Linnaeus, Hylomys suilius, Tupaia belangeri (= Tupaia glis), Macaca mulatta, Paguma larvata (Smith), Prionodon pardicolor Hodgson, Dremomys pernyi, Menetes berdmorei, Bandicota savilei (= B. bengalensis), Rattus tanezumi (= R. r. germaini), Rattus andamanensis (= R. koratensis) (Chau et al. 2007).

Remarks. Examined specimens differ from the description of H. simena (Li et al. 1997) by the shorter legs and longer scutal setae.