Hypolycaena irawana is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi, Heinz G. Schroeder and Colin G. Treadaway in 1984. It is found in Palawan in the Philippines.
Paruparo mio is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi, Heinz G. Schroeder and Colin G. Treadaway in 1984. It is endemic to the Philippine island of Mindanao. Forewing length: 16–17 mm. It is a quite rare species and the threat category is "vulnerable".
Hypolycaena schroederi is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1984. It is endemic to the Philippines where it is distributed on Mindanao and Samar islands. It is a very rare species.
Dacalana mio is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi, Heinz G. Schroeder and Colin G. Treadaway in 1983. Forewing length: 16–18 mm. It is rare species, endemic to the Philippines and found only on the islands of Mindanao and Leyte.
Sinthusa natsumiae is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1979. It is endemic to the Philippines and is found on many islands. It is very beautiful, especially on the forewing upperside of the male, where it has two brilliant blue colours. Its forewing length is about 12–15 mm.
Arhopala tomokoae is a butterfly of the family Lycaenidae. Panchala paraganesa tomokoae H. Hayashi, 1976 was moved to Arhopala paraganesa tomokoae by Schröder and Treadaway in 1955 and its status changed to Arhopala tomokoae by Schrőder and Treadaway in 2002.
Arhopala matsutaroi is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1979. Its forewing length is 19 mm. It is endemic to the Philippines. It is uncommon and found only on Mindanao.
Rapala tomokoae is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi, Heinz G. Schroeder and Colin G. Treadaway in 1978. It is endemic to the Philippines. Its forewing length is 17–19 mm.
Sinthusa mindanensis is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi, Heinz G. Schröder and Colin G. Treadaway in 1978. It is found on the Philippine islands of Mindanao and Leyte.
Catapaecilma nakamotoi is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1979.
Deramas treadawayi is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1981. It is found on Mindanao in the Philippines.
Arhopala sakaguchii is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1981. It is found on the Philippine islands of Negros and Mindoro.
Pratapa tyotaroi is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1981. It is endemic to the Philippines. On Mindanao island it is distributed on Mount Apo, Mount Kitanglad and Mount Masara.
Rachana circumdata is a butterfly of the family Lycaenidae first described by Heinz G. Schroeder, Colin G. Treadaway and Hisakazu Hayashi in 1978. It is found on Marinduque in the Philippines.
Dacalana liaoi is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi, Heinz G. Schroeder and Colin G. Treadaway in 1983. Its forewing length is 17–18 mm. The species is endemic to the Philippines and distributed on Panay and Negros islands. It is not a common species.
Dacalana akayamai is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi, Heinz G. Schroeder and Colin G. Treadaway in 1983. It is endemic to the Philippine island of Mindanao.
Dacalana irmae is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi, Heinz G. Schroeder and Colin G. Treadaway in 1983. It is endemic to the Philippines and found only on Sibuyan Island. The forewing length is 17.5–20 mm.
Dacalana treadawayi is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1984. It is endemic to Mindanao island in the Philippines.
Tajuria deudorix yuhkichii is a subspecies of the butterfly Tajuria deudorix in the family Lycaenidae. The subspecies was first described by Hisakazu Hayashi in 1984. It is found in Palawan in the Philippines.
Dacalana lucillae is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi, Heinz G. Schroeder and Colin G. Treadaway in 1983. It is found only on Luzon island in the Philippines. The forewing length is 18–19 mm.
