Help identify the Galagabugs what feast upon the corn

Benny sez, "A friend of mine shot this picture of some Galaga-looking bugs and shared it on Facebook. According to his description they seem oblivious to humans and are attracted to corn plants. Perhaps some happy mutant entomologists out there can help us identify the bugs. We live in Malaysia which has a tropical rainforest climate – perhaps that information will help a little. P.S. please credit the picture to Robert Chua from Kuala Lumpur, Malaysia."