The Spotted Mulga Snake has a defensive stance very similar to that of the Mulga Snake.
Although highly venomous they only reluctantly strike when first disturbed but can become very pugnacious when provoked enough and will flatten out their neck and try to bite. It is likely that their venom output would be large and similar to P australis and this is another factor that could potentially make them dangerous and to be avoided. There have however been no recorded fatalities so far.
It occupies an area in the southern western Australian temperate arid to sub-arid plains, with Mulga woodland, acacia shrub land and rocky outcrops. It shelters in abandoned animal burrows, in rock crevices, and under fallen timber.
They are often found active early morning or just on dusk and in the hotter parts of the year can be active at night time particularly the first hour after sunset. Unfortunately a lot of specimens get attracted to deep man made wells that are often only loosely covered over by tin sheeting or timber where they often fall down become trapped and die a very slow death. They are likely to be attracted to these wells by the frogs that inhabit them, the scarcity of water during the dry season and simply temporary shelter.
Prey consists of small mammals, birds, snakes, lizards, and frogs.
Mating occurs around late spring and they lay on average nine soft shelled eggs which are left to self incubate. Eggs normally hatch at anywhere between mid January to early April
Due to the very low numbers of specimens are held in captivity across Australia at present, the Spotted Mulga is highly desired. They are not considered to be a rare species in the wild but it is likely to be a few more years yet before enough specimens find their way in to captivity to meet the demand, or to sustain a captive bred supply.
All reptiles remain protected in Western Australia under the W.A Wildlife and Conservation act (1950).