Rodolia cardinalis (Vedalia Beetle or Cardinal Ladybird)

The native Australian insect that famously demonstrated the potential of 'classical' biological control of insect pests, when stocks were released in California in 1888-89 in a bid to control an outbreak of Cottony cushion scale. https://biocontrol.entomology.cornell.edu/predators/Rodolia.php

Regional distribution

Rodolia cardinalis is listed in the following regions: