Three new species of the genus Viettherchnus Kirejtshuk, 1985 are described and illustrated: Viettherchnus apriculus sp. nov. (Malaysia), V. helferi sp. nov. (Indonesia: Kalimantan, Malaysia, Myanmar) and V. orszuliki sp. nov. (Nepal); the latter represents the first species of the genus known from the Himalayas. An identification key to all Viettherchnus species is provided.
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