Distribution: Batu Punggul, Sapulut, Sabah, Malaysia; Kpg. Benuk, Padawan, Sarawak, Malaysia; Fairy Caves, 8km from Bau; Kpg. Beratok, Siburan, Serian-Kuching road, Sarawak. Widely distributed in east Sarawak and Sabah. Taxonomic name: Opisthostoma brachyacrum lambii (Vermeulen, 1991) (Taxon Pages)
