The individualsʼnumber of lepidopteran species has been investigated at the alpine zone of Mt. Norikura in August, 2006. The ratio of alpine species in this investigation was smaller except for a few species. The ecology of some species was studied on this investigation.
Arhopala myrzala Hewitson, 1869 on Rubang Is. and a female of Deudorix hypargyria Elwes, 1893 on Palawan Is. were found for the first time in the Philippines.