Walchia ( Walchia ) disparunguis (Oudemans, 1929)

Antonovskaia, A. A., Balakirev, A. E. & Lopatina, Y. V., 2023, New data on the distribution of chigger mites (Acariformes: Trombiculidae) associated with small mammals in Vietnam, Zootaxa 5346 (3), pp. 271-306 : 278

* Walchia ( Walchia) disparunguis (Oudemans, 1929)

Material examined. Vietnam: Bà R ịa-Vũng Tàu ( Xuyên M ộc, Hòa Tân)— Maxomys surifer ( October 2011, 18 larvae), Tây Ninh ( Tân Biên district , Tân Bình)— Rattus type IV ( October 2011, 1 larva) .

Distribution. Burma, Ceylon, Borneo, Indonesia ( Java), Malaysia, Papua New Guinea, Thailand, Vietnam: Nghệ An (Phủ Quỳ)— Niviventer tenaster ( = R. niviventer lotipes ), Rattus tanezumi ( = R. flavipectus , R. f. molliculus), Quảng Trị (Vĩnh Linh)— Rattus exulans (Peale) ( = R. r. concolor ), Rattus losea ( = R. r. exiguous ), Rattus tanezumi ( =R. f. molliculus, R. r. sladeni ) ( Schluger et al. 1960b; Grochovskaja 1967); Cao Bằng (Ba Bể), Kon Tum, Lâm Đồng (Bảo Lộc)— Tupaia belangeri ( = Tupaia glis ), Rattus niviventer , Maxomys moi ( = Rattus alticola ) ( Maxomys alticola (Thomas) is endemic species in North Borneo, in Vietnam Maxomys moi inhabits mountainous regions) ( Chau et al. 2007; Stekolnikov 2021). Hosts with no locality indicated: Rattus vinhlinh (?), Rattus rattus ( = R. r. wrougthoni ), Rattus tanezumi ( = R. r. khyensis , R. r. tikos ) ( Schluger et al. 1960b; Grochovskaja 1967)

Remarks. Examined speciemens differ from the description of W. ( W.) disparunguis ( Vercammen-Grandjean 1971) by the number of setae on legs coxa (fCx = 1-1-1 vs. 1-1-3).