| abstract | Trombicula (Sasatrombicula) siamensis from the horseshoe bat, Rhinolophus luctus, collected at Doi Suthep, Thailand, and T. (S.) keechongi from the greater horseshoe bat(s), Hipposideros diadema, and Hipposideros sp., and the sheth-tailed bat(s), Emballonura raffrayana, and Emballonura sp., from the Solomon Islands are described and illustrated. The subgenus Sasatrombicula Vercammen-Grandjean, 1960, is redefined and, in addition to the two species listed above, is considered to contain the following species: T. (S.) leveri Womersley, 1952; T. (S.) koomori Sasa & Jameson, 1954; T. (S.) cherrata Taufflieb, 1960; T. (S.) alicola Domrow, 1961; T. (S.) hexasternalae Vercammen-Grandjean, 1963; and T. (S.) kukongensis Chen & Hsu, 1963. |