Brontispa longissima
Brontispa longissima is a leaf beetle that feeds on young leaves and damages seedlings and mature coconut palms. It has become an increasingly serious pest of coconuts throughout various growing regions in the Pacific, especially over the last 3 decades, including Indonesia, Solomon Islands, Vietnam, Nauru, Cambodia, Laos, Thailand, Maldives, Myanmar, Hainan Island, and Aru Islands, and most recently, the Philippines.
On September 27, 2007, Philippines' Metro Manila and 26 provinces were quarantined due to having been infested with this pest.
Control measures include pesticides, and biological control agents such as parasitic wasps.
There is a similar-looking pest species of leaf beetle in a related genus, Plesispa reichei, also sometimes referred to as the "coconut leaf beetle", which is distinguished only with some difficulty from B. longissima; primarily by its slightly broader body and stronger punctation.
