Matsutaroa is a butterfly genus in the family Lycaenidae. It is nearest to the genus Ancema, but differs from it in the following points: (1) veins 5 and 6 on the forewing are not very close at their origins, but in Ancema they are very close at their origins; (2) the ground colour of the underside of the male is white, tinged with pale yellow and blue and has no shade of silver, but in the genus Ancema the ground colour of the underside is more or less tinged with silver; (3) in the male genitalia the valva is stout, a short brachial process is separating from the dorsum of the valva, and the phallus is stout, but in Ancema the valva is slender, a long brachial process separating from the ventral direction of valva, and the phallus is very slender.
Hypolycaena toshikoae is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1984. Forewing length: 10–13 mm. It is endemic to the islands of Luzon and Mindoro in the Philippines. On Mount Halcon of Mindoro island, the male is not rare but the female is very rare.
Tajuria matsutaroi is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1984. It is endemic to the Philippine islands of Mindanao and Leyte. Forewing length is about 16–19 mm. The butterfly is a rare species. The nominotypical subspecies is found only on Mount Apo on Mindanao island and occurs several times a year.
Tajuria matsutaroi motokoae is a butterfly of the family Lycaenidae. It is a subspecies of Tajuria matsutaroi. This subspecies is rarely found on Leyte island in the Philippines. Its forewing length is 16–19 mm. Subspecies motokoae is distinguishable from the nominotypical subspecies by the following characters of the upperside: 1) ground colour is decidedly darker and clearly tinged with purple, while only slightly tinged with pale purple in subspecies matsutaroi, 2) black border is broader in spaces 1b, 2 and the upper part of the cell on the forewing, 3) in the female, the upperside costal area is blackish, whereas it is whitish in subspecies matsutaroi.
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.
Rachana mioae is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1978. Eliotia mioaeH. Hayashi, 1978 was moved to Rachana, because Eliotia is the junior homonym of a genus of marine animals described in 1909.
Arhopala matsutaroi is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1979. Its forewing length is 19 mm (0.75 in). 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.
Tajuria mizunumai is a butterfly of the family Lycaenidae. It is found only on Mindanao in the Philippines. It was originally listed as a subspecies of Tajuria dominus, but was changed species status as Tajuria mizunumai by Colin G. Treadaway in 1995 and by H. Hayashiin 2017.
Deramas ikedai is a butterfly of the family Lycaenidae, found on Mindanao in the Philippines. The species was first described by Hisakazu Hayashi in 1978.
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.
Deramas treadawayi is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi in 1981. It is found on Mindanao in the Philippines.
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.
Deudorix philippinensis is a butterfly of the family Lycaenidae first described by Heinz G. Schroeder, Colin G. Treadaway and Hisakazu Hayashi in 1981. It is endemic to the Philippines where it is found on the islands of Luzon, Marinduque, Masbate, Mindoro, Panay, Negros, Sibuyan and Mindanao.
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 igolotiana is a butterfly of the family Lycaenidae first described by Siuiti Murayama and Hachiro Okamura in 1973. It is endemic to the Philippines and found on Luzon, Mindoro and Mindanao islands. The forewing length is 17–19 mm. Subspecies T. i. fumiae is distributed on Mindanao.
