Philodoria nigrelloides ( Swezey, 1946 )

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 : 100

Philodoria nigrelloides ( Swezey, 1946)

Fig. 22C .

Parectopa nigrelloides Swezey, 1946: 628 .

Philodoria nigrelloides ( Swezey, 1946) ; Zimmerman 1978a: 690, figs. 444, 459, 466.

Type locality. Alakai (Kauai).

Type material. Holotype ♀, Alakai Swamp, [4000 ft.], Kauai, 22.viii.1921, Swezey Coll., [ex] Dubautia , | Holotype Parectopa nigrelloides Swezey | ♀ genitalia on slide Z-I-10-67| Type no. 4262 in BPBM. Described by Swezey based on a single specimen from Kauai. This specimen, designated by Swezey is here thus the holotype following article 73.1.2 ( ICZN 1999 ) . Holotype was remounted by Zimmerman (1978a: figs. 444, 466) ( Fig. 22C ).

Diagnosis. The forewing pattern is similar to that of P. nigrella (Walsingham) and P. touchardiella (Swezey) , but differs from either of them in having a very small dorsal patch at the base of its forewing ( Fig. 22C ).

Redescription: Adult ( Fig. 22C ). Wingspan 8 mm in holotype. Head brownish fuscous; frons white; maxillary palpus white; labial palpus white above, black beneath. Antenna black. Thorax brownish fuscous, white below. Forewing bronzed brown with outwardly oblique white streaks: cs 3 from 3/4, extending about 2/3 across wing; one very small dorsal white patch (ds 1) at base ( Zimmerman 1978a: fig. 466); ds 2 at 2/5, extends to about middle of wing, wider at base and tapering to a point; a smaller ds 3 at 2/3. A few white scales on dorsum near base; apical portion with a blue spot (as) with black center; near apex of costa three spots (a, b, c), the a larger, separated by black spots; cilia concolorous with the white and black spots; terminal cilia fuscous, pale at base where they join a line of black scales marking the terminal border, tornal cilia fuscous. Abdomen white below. Legs pale brown, tarsi spotted with white.

Male genitalia Unknown.

Female genitalia ( Zimmerman 1978a: fig. 459). Similar to P. funkae , but differs in having rather indistinct wrinkles on the corpus bursae.

Distribution. Kauai ( Swezey 1946).

Host plants. Asteraceae : Dubautia sp. ( Swezey 1946).

Biology. Swezey (1940) noted that the single specimen was reared from a leaf mine of Dubautia .

Figures

FIGURE 22. Adults of Philodoria species. A P. keaensis sp. n. holotype female, lateral view, B Forewings of holotype, C P. nigrelloides (Swezey, 1946) holotype female, D Forewings of P. platyphylliella sp. n. holotype male. Scale bar 1 mm.