Miomantis caffra
Thanks to the work of Matthew Connors https://www.inaturalist.org/people/659121 my name is one of many on an actual scientific paper:
Citizen scientists track a charismatic carnivore: Mapping the spread and impact of the South African Mantis (Miomantidae, Miomantis caffra) in Australia
https://jor.pensoft.net/article/79332/
Here is an article from back in the day on the events that led to it:
https://www.thecitizen.org.au/articles/social-media-sleuths-help-identify-mystery-mantis