Revision of the Hawaiian endemic leaf-mining moth genus Philodoria Walsingham (Lepidoptera: Gracillariidae): its conservation status, host plants and descriptions of thirteen new species Author Kobayashi, Shigeki 0000-0002-1336-4730 crossroad1994@hotmail.co.jp Author Johns, Chris A. 0000-0002-1749-3847 Author Kawahara, Akito Y. 0000-0002-1749-3847 text Zootaxa 2021 2021-03-17 4944 1 1 175 journal article 7393 10.11646/zootaxa.4944.1.1 8adfa0f6-06a7-44b5-a3be-351d0bdc7a62 1175-5326 4681813 380D2F75-D4F9-4974-97E2-25E0C62CB3B0 Philodoria sp. A near P . lysimachiella Figs. 26G , 56H . Material examined. 6♀ , 1 (sex unknown), Halehaku , Ko'olau Gap , Maui , 9.viii.2014 (stored), K. Bustamente leg., 20.7767N , 156.2076W , host: Lysimachia sp., CJ346a–e [CJ346a / SK 753♀ & ♀ , CJ346b / 2 ♀ , CJ346d / sex unknown (no abdomen)]; deposited in BPBM . Seven specimens were examined, all of which have parts of their body missing. Because specimens are incomplete, we refrain from formally describing this species until a complete specimen becomes available. What remains of seven specimens are: 1 specimen with only 75% of forewing and hindwing remaining, wings without mountant under a coverslip ( CJ346 a / SK753); 5 specimens with only wings and abdomen remaining; sample CJ346d which has wings unmounted and damaged in four separate vials ( CJ346 a– e). The head, antenna, thorax, and legs for all samples were sacrificed for molecular analysis . Diagnosis. The forewing pattern is similar to P. lysimachiella ( Fig. 26G ), but Philodoria sp. A is distinguished by a bronze color band ( bb 2 ) interrupted at middle by an orange patch and female genital characters are differed by the trapezoid lamella antevaginalis rather narrowing at posterior part and shorter cup-shaped antrum and short spines on signa ( Fig. 56H ). Adult ( Fig. 26G ). See Material examined and diagnosis sections. Male genitalia. Unknown. Female genitalia ( Fig. 56H ) (n=1). 1520 µm long. Ostium bursae large; antrum short, cup-shaped; lamella antevaginalis 360 µm , trapezoid, rather narrowing at posterior part, inflexed on the posterior margin. Corpus bursae 700 µm long; paired signa each with a short linear spine. Distribution. Maui. Host plants. Primulaceae : Lysimachia sp. This host plant may be a new species discovered by Keahi Bustamente and Hank Oppenheimer (K. Bustamente & H. Oppenheimer pers. comm.) Biology. Unknown. Remarks. We observed Philodoria leaf mines on L . remyi in Iao Valley on West Maui ( Fig. 80C, F ). These larvae form white linear mines with a dark brown frass line on the adaxial leaf surface, similar to that of P . molokaiensis . Unfortunately, adults did not emerge from our rearing efforts, and therefore cannot confirm for certain that these were the mines of P. lysimachiella .