Philodoria platyphylliella Kobayashi, Johns & Kawahara

Kobayashi, Shigeki, Johns, Chris A. & Kawahara, Akito Y., 2021, Revision of the Hawaiian endemic leaf-mining moth genus Philodoria Walsingham (Lepidoptera: Gracillariidae): its conservation status, host plants and descriptions of thirteen new species, Zootaxa 4944 (1), pp. 1-175 : 101

publication ID

https://doi.org/ 10.11646/zootaxa.4944.1.1

publication LSID

lsid:zoobank.org:pub:380D2F75-D4F9-4974-97E2-25E0C62CB3B0

DOI

https://doi.org/10.5281/zenodo.4683280

persistent identifier

https://treatment.plazi.org/id/038087CB-FF8A-076B-FF75-949EFDBEA4D6

treatment provided by

Plazi

scientific name

Philodoria platyphylliella Kobayashi, Johns & Kawahara
status

sp. nov.

Philodoria platyphylliella Kobayashi, Johns & Kawahara View in CoL sp. n.

Figs. 22D View FIGURE 22 , 50I View FIGURE 50 , 51G View FIGURE 51 , 52G View FIGURE 52 , 75D–G View FIGURE 75 , 87G–I View FIGURE 87 .

Philodoria sp. 14; Johns et al. 2018: figs. 1A, 2.

Type locality. Nakula Natural Area Reserve (Maui).

Etymology. The specific epithet, platyphylliella , refers to the species epithet of Dubautia platyphylla , its host plant.

Type material. Holotype ♂, Nakula Nar, Maui Is., 11.viii.2014 (stored), C.A. Johns leg., host: Dubautia platyphylla , 26.vii.2014, CJ363, SK833♂ in BPBM . Paratype ♂, same locality and data as holotype, 10.viii.2014 (stored), CJ358, PHIL0026 (only abdomen) in BPBM. The holotype was mounted as a dry pinned specimen by placing two forewings without mountant under a coverslip. The head, antenna, thorax, and legs of paratype were sacrificed for molecular analysis.

Additional material. 1♀, same locality and data as holotype, 12.viii.2014 (stored), CJ368, PHIL0025 genitalia missing in BPBM .

Diagnosis. The forewing pattern similar to that of P. nigrelloides (Swezey) and P. touchardiella (Swezey) , but is differs from them by having a darker brown forewing with a blue to fuscous patch at its apex ( Fig. 22D View FIGURE 22 ). The male genitalia is similar to that of P. touchardiella , but is distinguished by its rather thick saccus.

Description: Adult ( Fig. 22D View FIGURE 22 , 75D–G View FIGURE 75 ). Forewing length 3.4, 3.6 mm in holotype. Head bronze; frons white; maxillary palpus pale bronze; labial palpus white basal half, bronze at apex; Antenna bronze, about 1.1–1.2 x length of forewing. Thorax dark brown. Forewing dun to bronze with three oblique white streaks: ds 2 at about 2/5, extends to about middle of wing; a smaller ds 3 at 2/3. a small costal spot at near base; cs 3 from 3/4, extending about 2/3 across wing; apical portion dark orangish brown with a large as of blue scales; a blue to fuscous patch at 4/5; few shiny gray spot at the middle of apical portion; cilia fuscous mixed dark brown scales with three white costal spots (a, b, c) at apex; black bl 1 at terminal cilia. Hindwing and cilia fuscous. Abdomen bronze, white beneath. Legs fuscous.

Male genitalia ( Figs. 50I View FIGURE 50 , 51G View FIGURE 51 , 52G View FIGURE 52 ) (n=2). Capsule 800 µm. Tegumen 0.9 x length of valva; valva 590 µm long, tapering along costal margin from basal 1/2 to apex ( Fig. 50I View FIGURE 50 ). Saccus digitiform in ventral view ( Fig. 51G View FIGURE 51 ). Phallus 500 µm long and straight, slightly widening at phallobase with developed coecum; cornuti in vesica indistinct ( Fig. 52G View FIGURE 52 ).

Female genitalia Unknown.

Distribution. Maui.

Host plants. Asteraceae : Dubautia platyphylla (A.Gray) D.D. Keck. Dubautia platyphylla is rare and restricted to Maui. We surveyed a small population of this plant species within Nakula Natural Area Reserve, Maui, in July 2014 ( Fig. 69C, D View FIGURE 69 ). This plant population was located on a steep drainage and was out of reach of ungulates, goat, pig, and deer.

Biology. ( Fig. 87G–I View FIGURE 87 ). Larvae form an oblong blotch mine ( Fig. 87G–I View FIGURE 87 ). Pupation occurs in the white cocoon on the adaxial leaf surface ( Fig. 87I View FIGURE 87 ).

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