Family Tenthredinidae.
Pear and Cherry Slug refers to the Sawfly larva that eats the leaves of cherry, pear, and plum trees, leaving behind a skeleton of veins.
https://bie.ala.org.au/species/https://biodiversity.org.au/afd/taxa/f460cd13-6249-4510-bb37-4e86d7a23964
Caliroa cerasi is listed in the following regions: