The specific name, kopsteini, is in honor of Felix Kopstein, who was an Austrian physician and naturalist, and did field work in the Dutch East Indies.

[2] D. kopsteini is the only species in its genus with red coloration on the anterior part of the body.

[3] D. kopsteini is found in Brunei, Indonesia, Peninsular Malaysia, Singapore, and Thailand.

[3] The preferred natural habitat of D. kopsteini is forest, at altitudes from sea level to 624 m (2,047 ft), but it has also been found in artificial habitats such as village gardens.

[3] D. kopsteini preys predominately upon lizards, and to a lesser extent upon frogs.