I have never seen a specimen of this species in person. It is apparently rather closely-related to Vespa tropica, and is endemic (found only in) the Philippines. It is known to be a ground-nesting species, with a nest design similar to that of other ground-nesting species such as Vespa tropica. The following two papers contain information about the only known occasion a colony was collected.
The photo below copyright and courtesy of Jean-Luc Renneson (Belgium). Specimen from collection of the Natural History Museum of Brussels.