[2] The species is native to south-eastern Asia.

The specific name, harti, is in honor of Robert Hart, who was a British customs official in China.

[3] D. harti is found in southern China, Taiwan, and northern Vietnam.

[2] The preferred natural habitat of D. harti is forest, at altitudes of 400–2,600 m (1,300–8,500 ft), but it has also been found in farmland.

[1][2] From June to September, the female of the species may lay a clutch of 4–13 eggs under leaf litter or rocks, and then stay with the eggs to guard them.