Material examined. Location A: 2 larvae from Pellorneum ruficeps (Passeriformes: Pellorneidae), 1 February 2010.
Distribution and hosts. In South Vietnam, Helenicula scanloni is reported to infest Tupaia sp. (Scandentia: Tapaiidae), Menetes sp. (Rodentia: Sciuridae), and Rattus sp. (Rodentia: Muridae); in Thailand, this chigger is reported to occur on birds Gallus gallus (Linnaeus) (Galliformes: Phasianidae), Centropus sinensis (Stephens) (Cuculiformes: Cuculidae), Dicrurus hottentottus (Linnaeus) (Passeriformes: Dicruridae), Pellorneum ruficeps, Pomatorhinus hypoleucos (Blyth) (Passeriformes: Timaliidae), and Hydrornis oatesi (Hume) (Passerifomes: Pittidae), as well as on mammalian hosts Tupaia glis (Scandentia: Tupaiidae), Rattus rattus (Linnaeus) (Rodentia: Muridae), and Prionailurus bengalensis (Kerr) (Carnivora: Felidae) (Nadchatram & Traub 1971).