Figs. 7A, B, 26A, 34A, 39A, 41A, 42A, 43A, 56A, B, 79A–D, F, G.
Philodoria succedanea Walsingham, 1907: 717–718; pl. 25, fig. 19; Zimmerman 1978a: 718: figs. 433, 435, 467, 472; Kobayashi et al. 2018: 118–126, figs. 2A–D, 5A–D, 6A–D, 7E, F, 8A, 9, 14A.
Type locality. Olinda, Haleakala (Maui).
Type material. Lectotype ♀, Olinda, 4000 ft., Haleakala, MAUI, Hawaiian Is. iv.1894, Perkins. 26695 [Walsingham specimen number]| PHILODORIA SUCCEDANEA Wlsm. Fn. Hawaii. I TYPE ♀ descr. figd.| Walsingham Collection. 1910-427.| NHMUK010305341. Paralectotypes 17 (2♂ 1♀ 14 sex unknown; NHMUK ones are all from above Walsingham accession and ‘PARATYPE’ below is short for ‘ PHILODORIA SUCCEDANEA Wlsm. PARATYPE’ as printed on large black-margined labels, with the 5-digit Walsingham specimen numbers whose first digit is ‘2’ borne on the locality label): 1 ♂, Haleakula 4000 ft. MAUI, Hawaiian Is. V. 1896 | Perkins. 28505|PHILODORIA SUCCEDANEA Wlsm. Fn. Hawaii. I TYPE ♂|BM ♂ Genitalia slide no. 2755| NHMUK010305341. 1♀ 2 sex unknown: Haleakala, 5000ft, MAUI, Hawaiian Is., v.1896, Perkins. 28355| PARATYPE 3/17| NHMUK010862804 |; 28230| PARATYPE 4/ 17♀ | BPBM 34324; 28236| PARATYPE 5/17| BPBM 34321. 4 sex unknown: Haleakula - 4000 ft. Maui, v. 1896, Perkins. 28492| PARATYPE 8/17; 28493| PARATYPE 9/17| BPBM 34320 |; 28494| PARATYPE 10/ 17| NHMUK010862806; 28495| PARATYPE 11/17| NHMUK010862807. 1 ♂ 7 sex unknown, same data and locality as lectotype: 26696| NHMUK010862803; 26661| PARATYPE 1/17| BPBM34325; 26667| PARATYPE 2/ 17| BPBM 34222; 28511| PARATYPE 12/17| NHMUK010862808; 28512| PARATYPE 13/17|NHM UK 010862809; 28513| PARATYPE 14/17| NHMUK010862810;28514| PARATYPE 15/17♂| NHMUK010862811; 28552| PARATYPE 16/17| BPBM 34323.
Diagnosis. Philodoria succedanea is very similar to P. auromagnifica. Both species feed on Myrsine, but the former is distinguished by the bright orange patches and black triangular shaped bp in the forewing (Fig. 7A, B); the male genitalia which has broad valva, slender and long saccus curving toward dorsal margin (Figs. 41A, 42A); the female genitalia which has signa with slender and long spines (Fig. 56A, B) (Kobayashi et al. 2018).
Adult (Fig. 7A, B, 26A, 34A). Wingspan 9–10 mm in type series. Male genitalia (Figs. 39A, 41A, 42A, 43A) and Female genitalia (Fig. 56A, B). See also Kobayashi et al. (2018).
Distribution. Kauai, Oahu, and Lanai: (Kobayashi et al. 2018), Maui (Walsingham 1907) and Molokai and Hawaii (Big Island) (Zimmerman 1978a).
Host plants. Primulaceae: Myrsine lessertiana A. DC. and M. sandwicensis A. DC. (Johns et al. 2016), M. linearifolia Hosaka and M. knudsenii (Rock) Hosaka (Kobayashi et al. 2018), Myrsine sp. (Zimmerman 1978a).
Biology. (Fig. 79A–D, F, G) Kobayashi et al. (2018: 123, 126, Figs. 8A, 9, 14A) reported leaf mine, pupal cocoon and resting posture of the adult.