Here's what we know:
* Spider lifespans are generally short. Most spiders live for a year or two, with some exceptions living longer.
* Peacock spiders are small. Their small size could indicate a shorter lifespan compared to larger spider species.
* Limited research: There isn't a lot of specific research on peacock spider lifespan, likely because they are relatively new to scientific study.
Therefore, it's safe to assume that the average lifespan of an Australian peacock spider is likely within the range of 1-2 years.