First record of Leptus ( Leptus ) holgeri (Acari: Prostigmata: Erythraeidae) from Vietnam, with redescription of the species

Larvae of Leptus (Leptus) holgeri Haitlinger, 1999 were collected from undetermined Orthoptera (Acrididae) for the first time from Vietnam. This paper presents new morphological and meristic data for the species. All Leptus species found on Orthoptera are mentioned and their distribution are given.