Homaloxestis luzonensis, Park, Kyu-Tek & Byun, Bong-Kyu, 2007

Park, Kyu-Tek & Byun, Bong-Kyu, 2007, Review of Homaloxestis Meyrick (Lepidoptera, Lecithoceridae) of the Philippine Islands, with descriptions of two new species, Zootaxa 1449, pp. 57-64 : 60-61

4. Homaloxestis luzonensis sp. nov.

( Figs. 2 , 5, 5 a, 8)

Type. HOLOTYPE Ψ, Luzon, Mt. Bald, Malico, Santa Fe, N. Viscaya, 1150 m, 11–13.XI.1997 (Mey, Ebert & Nuss), gen. prep. No. CIS-5043. PARATYPES: 2Ψ, same data as the holotype; 1ɗ, Luzon, Mt. Zambales, Coto, 150 m, 9–10.XI.1998 (Mey & Spidiel), gen. prep. no. CIS-5226. Types in ZMHB.

Diagnosis. This new species is superficially similar to H. quadralis but differs in being larger, having the fringe of the forewing grayish brown instead of creamy white, and having a narrower whitish band along the costal margin.

Description. Female ( Fig. 2 ). Wingspan 17–18 mm. Head yellowish brown, with pale orange scales laterally. Tegula yellowish brown medially, pale orange laterally, much broader than that of cholopis . Antenna pale orange, without annulations on flagellum. Labial palpus long; second segment much slenderer than that of cholopis ; third segment longer than second, dark fuscous ventrally. Thorax yellowish brown. Forewing ground color yellowish brown; costa with pale orange band along margin; discal spot absent; apex acute; termen slightly sinuate; fringe with paler basal line and broad yellowish brown subbasal band, then paler outwardly. Venation similar to that of cholopis . Hindwing grayish orange; apex acute; fringe concolorous with ground color.

Male genitalia ( Figs. 5, 5 a). Gnathos strongly curved. Valva broad, with a median process on ventral margin; distal part semi-ovate, with small spines along outer margin. Aedeagus bent, with 7–8 conical denticles medially. Seventh segment with oblique lateral ribs and a tubular concavity in the middle of the sternite; paired extension of rod internally, as long as three segments combined, bearing long extensible hair-pencil at apex, about 1.5 times length of rod.

Female genitalia ( Fig. 8 ). Eighth sternite deeply emarginate medially. Antrum cup-shaped, rather short, weakly sclerotized. Ductus bursae slightly longer than corpus bursae; ductus seminalis arising from near middle. Corpus bursae ovate; signum rhomboid, with transverse dentate median groove.

Distribution. Philippines (Luzon).

Etymology. The species name is derived from the island of Luzon where the type locality situated. Remarks. The female specimen is designated as the holotype because the male is in poor condition and its genitalia partly damaged.

Figures

FIGURES 2 – 4. Adults of Homaloxestis. 2. H. luzonensis, holotype; 3. H. plocamandra; 4, H. quadralis, holotype.

FIGURES 5 – 7. Male genitalia of Homaloxestis. 5, H. luzonensis sp. nov., paratype, gen. prep. no. CIS- 5226; 5 a, ditto, aedeagus; 6, H. plocamandra (Meyrick); 6 a, ditto, aedeagus; 6 b, ditto, a long rod in the 7 th segment with an extensile hair-pencils; 6 c, H. grabia Wu et Park, left valva; 7, H. quadralis sp. nov., holotype, gen. prep. no. CIS- 5027; 7 a, ditto, aedeagus; 7 b, ditto, rod in the 7 th segment.

FIGURES 8 – 9. Female genitalia of Homaloxestis. 8, H. luzonensis sp. nov., holotype, gen. prep. no. CIS- 5043; 9. H. plocamandra (Meyrick), gen. prep. no. CIS- 5269.