Spotted-eye Hoverfly

Eristalinus arvorum (Fabricius, 1787), of subgenus Lathyropthalmus, is distributed in China, Australia (Qld), Hawaiian Is, Micronesia, Northern Marianas, and Southeast Asia. It has a very distinctive eye marking in the form of spots. E. arvorum is an important insect pollinator in fruit setting of apple and mango.

Pics 5 and 6 show the hoverfly sharing the Yellow Alder flower with a flesh fly, Sarcophaga sp. (http://www.projectnoah.org/spottings/16995109).