Taxonomic notes: There is taxonomic confusion in the literature between Typhlops diardii and T. muelleri, the latter having previously been treated as a subspecies of the former.

This species occurs in Myanmar, Thailand, Lao PDR, and Viet Nam south of 14ºN, southward to Sumatra and Borneo (Smith 1943, David and Vogel 1996). The record from Myanmar is from the western part of the country, and this snake's presence has not been confirmed elsewhere in Myanmar. There is a single record from Mamokwari, a site at around 100 m asl., in West Papua Province, Indonesian New Guinea.
Das (2010) refers to a record from New Guinea, but not to the Moluccas

This fossorial and nocturnal species occurs in lowland and hilly areas in forest, plantations, and wet cultivated areas (David and Vogel 1996). Stuart and Emmett (2006) reported a specimen from Cambodia that they obtained at night, which was active on the surface of hard soil in grassland with open pine forest at 700 m elevation. The maximum known elevation for this snake is 1,400 m asl. Nothing is known of the habitat where the New Guinea specimen was collected.

The species is considered relatively uncommon (David and Vogel 1996). Its is rare in Peninsular Malaysia and Thailand. Only a single specimen is known from New Guinea.

There are no reports of this species being utilized.

There are no apparent threats to this species across its range as a whole. Nothing is known of any threats in New Guinea.

This snake is found in several protected areas across its range, including Khao Luang National Park in Thailand. Manokwari, the known New Guinean locality, is not within any protected areas. Taxonomic research is needed to clarify species boundaries and distributional limits in this snake following the recognition of T. diardi as a full species.

This species has been recorded from Myanmar, Thailand, Lao PDR, and Viet Nam south of 14 degrees North southward to Sumatra and Borneo. It is normally found in forested areas, near cultivated grounds but it is generally uncommon. It covers a wide geographic range and no major threats have been reported. It is therefore listed as Least Concern.

• David, P. and Vogel, G. 1996. The Snakes of Sumatra: an annotated checklist and key with natural history notes. Edition Chimaira.
• Smith, M.A. 1943. The Fauna of British India, Ceylon and Burma, including the whole of the Indo-Chinese region. Vol. III. Serpentes. Taylor and Francis, London.
• Stuart, B.L. and Emmett, D.A. 2006. A collection of amphibians and reptiles from the Cardamom Mountains, southwestern Cambodia. Fieldiana Zoology, new series 109: 1-27.