About Brachycyttarus griseus Joannis, 1929
Brachycyttarus griseus, commonly known as the grass bagworm, is a moth species that belongs to the family Psychidae. This species was first formally described by Joannis in 1929. It is native to Southeast Asia, where its native range includes Vietnam, Malaysia, Sabah, and the Philippines. It has since been introduced outside of its native range to Guam and Hawaii.