[5] The species is endemic to eastern Australia and is most commonly found across central inland New South Wales through to the interior of south-eastern Queensland.

The specific name, damelii, is in honor of German entomologist Edward Dämel, who collected Australian specimens for Museum Godeffroy.

[5] It tends to favour dry sclerophyll forests and woodlands on clay soils where water bodies or gullies are present.

During Spring (September-October) adult females' ovarian follicles increase in size following ovulation in preparation of the breeding season.

[9] H. damelii has a relatively high fecundity, partly due to its large maternal snout-vent length (SVL), which has been found to significantly correlate with litter size.

[9] The venom of H. damelii is fairly mild and is unlikely to cause fatalities in humans; however, a bite from a larger specimen may be very painful.