The specific name, kochii, is in honor of Austrian-born South African entomologist Charles Koch.

[3] P. kochii is found in Namibia and in South Africa (southern Namaqualand).

[2] The preferred natural habitats of P. kochii are desert and savanna, at altitudes of 10–800 m (33–2,625 ft).

[1] Adults of P. kochii have a snout-to-vent length (SVL) of 4–5 cm (1.6–2.0 in).

Dorsally, the ground color is grayish with a lavender tinge, and there are five reddish-brown crossbands.