P. guttatus is endemic to the inland areas of south-eastern Queensland and north-eastern New South Wales, Australia.

[3] The preferred natural habitats of P. guttatus are grassland, shrubland, and savanna.

[3] P. guttatus, like most other snakes, is oviparous, laying 7–12 eggs during the breeding season.

It is naturally very shy, and will not bite unless provoked (by being stepped on by a boot, prodded by a stick, etc.).

A human, if bitten, may suffer severe pain, nausea, vomiting, diarrhoea, diaphoresis and regional lymphadenopathy at the location of the bite, similar to a red-bellied black snake's bite symptoms.