Frisilia cornualis Park

Park, Kyu-Tek, Wu, Chunseng, Kun, Andras & Sohn, And Jae-Cheon, 2008, A taxonomic review of the genus Frisilia Walker (Lepidoptera: Lecithoceridae), with description of two new species, Zootaxa 1696, pp. 1-24 : 11-12

19. Frisilia cornualis Park , sp. nov.

Type s. HOLOTYPE ♂, Ba Be National Park, Bac Khan Prov., Vietnam (KT Park & MY Chae), gen. prep. no. CIS-5293. PARATYPES. 1♂, 6Ψ, Nantou Co., Hueisien Exp. Forest, 650 m, Taiwan, 24–29 X 1998 (Mey & Spiedel), gen. prep. no. CIS-5300 (♂), CIS-4930 (Ψ). The holotype is deposited in the CIS, and paratypes in the ZMHB.

Diagnosis. The new species is superficially similar to F. trizeugma Wu and Park , but it can be distinguished by the grayish-orange ground color of the forewing, and the almost triangular labial papus with grayish-orange dorsal surface (labial palpus projected anteriorly, and with dark brown dorsal surface, in F. trizeugma ).

Description. Male ( Fig. 20 ). Wingspan, 11.0–12.0 mm. Head pale brownish orange dorsally, with vertical furrow centrally. Tegula dark brown anteriorly, but pale grayish brown speckled with brown scales ventro-distally. Antenna pale orange dorso-anteriorly, dark brown ventro-distally; flagellum speckled with blackish scales about at basal 1/10 and apical 2/10, pale orange between them. Labial palpus atypical, more or less triangular; 2nd segment strongly bent with long scale tufts projecting anteriorly, grayish-orange rough scales dorsally; distal portion bent downward, sparsely speckled with dark-brown scales on outer surface apically; 3rd segment minute, concealed in long scale tufts of 2nd. Forewing elongate; ground color grayish orange; dark scales scattered irregularly on upper surface; a small discal spot at middle; a reniform stigma beyond cell; dark-brown scales along costa at basal 1/4; costa nearly straight; apex obtuse; termen slightly oblique, not sinuate. Venation with R3 and R4+5 stalked near middle; R4 and R5 stalked near 3/4; R5 to termen; M1 remote from R3+4 at base; M2 absent; M3 almost parallel to M1; CuA1 and CuA2 stalked at basal 1/4. Hind wing gray; apex sharply pointed; fringe darker at basal half and paler at distal half with dark brown tips; M3 and CuA1 coincident.

Female with some different forewing venation from that of male: R3 and R4+5 stalked near basal 1/5; R4 and R5 stalked near 3/5; R5 to costa.

Male genitalia ( Figs. 51, 51 a). Basal lobes of uncus very short. Gnathos moderate, strongly bent preapically. Costal bar broad. Valva broad at base, narrowed beyond middle; costa concave before middle; distal part nearly parallel, slightly concave beyond half on ventral margin, with round apex; sacculus relatively short. Juxta with crescent median plate on ventral surface; lateral lobes not produced. Aedeagus as long as valva, with a pair of heavily sclerotized, horn-shaped, strong cornuti; one very strong, about 2/5 of aedeagus and the other more slender, shorter than the first.

Female genitalia ( Fig. 63 ). Eighth sternite with round caudal margin. Apophyses anteriores about 1/2 length of apophyses posteriores. Antrum weakly sclerotized, cup-shaped, with spinules on inner surface; connected with narrow ductus bursae. Ductus bursae narrowed in conjunction with antrum, then broadened, about 1.5 times length of corpus bursae. Corpus bursae ovate; signum a somewhat peanut-shaped, weakly sclerotized plate with fine thorns on upper surface.

Distribution. Vietnam, Taiwan.

Etymology. The specific name is derived from the Latin "cornu" (= horn), corresponding to the hornshaped cornuti in the aedeagus.

Diagnosis. The species differs from its allies by the relatively broad forewing with golden- yellow ground color.

Adult ( Fig. 21 , non-type in USNM). Wingspan, 15.0–17.0 mm.

Male genitalia ( Figs. 52, 52 a). See also Gozmány (1978: Pl. 68, Fig. 73), Wu (1997b: Pl. 33, Fig. 9 ), Park (2000: Figs. 17, 17 a).

Female genitalia. See Clarke (1965: Pl. 29, Fig. 2 , gen. prep. no. BM-8665), Gozmány (1978, Fig. 73); Wu (1997b, Pl. 33, Fig. 9 ).

Material examined. 1Ψ (lectotype), Yangmingshan, 13 IX 1933, gen. prep. no. BM-8665, and three additional types in BMNH; 2♂, Yangmingshan, 13 V 1935, in USNM; 1♂, Sanming, 5 V 1935, in USNM; 1♂, Sanming, 25 V 1935, gen. prep. no. CIS-4290, in CIS.

Distribution. Taiwan.

Figures

FIGURES 17 – 32. Adults. 17, F. anningensis Wu; 18, F. chinensis Gozmany; 19, F. compsostoma Meyrick; 20, F. c o r n u - alis sp. nov.; 21, F. homalistis Meyrick; 22, F. melanardis Meyrick; 23, F. neacantha Wu and Park; 24, F. procentra Meyrick; 25, F. senilis Meyrick; 26, F. spuriella Park; 27, F. strepsiptilia Meyrick; 28, F. sulcata Meyrick; 29, F. thapsina Wu and Park; 30, F. veriticosa Meyrick; 31, F. crossophaea (Meyrick); 32, F. homalistis Meyrick.

FIGURES 51 – 56. Male genitalia. 51, F. cornualis sp. nov., CIS- 5293, holotype; 52, F. homalistis Meyrick, CIS- 4290, non-type; 53, F. melanardis Meyrick, BM- 8675, holotype; 54, F. neacantha Wu and Park, USNM- 89614, holotype; 55, F. procentra Meyrick, BM- 8667, holotype; 56, F. senilis Meyrick, BM- 8661, holotype.

FIGURES 62 – 66. Female genitalia. 62, F. rostrata Meyrick, USNM- 88823, non-type; 63, F. cornualis sp. nov., paratype; 64, F. melanadris Meyrick, USNM- 90127, non-type; 65, F. crossophaea (Meyrick), GU- 8755 / BM, holotype; 66, F. h o m o c h l o r a Meyrick, BM- 8658, holotype

FIGURES 2 – 15. Adults. 2, Frisilia ancylosana Wu and Park; 3, F. asiana Park; 4, F. ceylonica Park and Wu; 5, F. dipsia Meyrick; 6, F. forficatella Park; 7, F. heliapta (Meyrick); 8, F. moriutii Park; 9, F. nesciatella Walker; 10, F. nesiotes sp. nov.; 11, F. notifica Meyrick; 12, F. ro s t r a t a Meyrick; 13, F. sejuncta Meyrick; 14, F. tricrosura Wu and Park; 15, F. triturata Meyrick; 16, F. trizeugma Wu and Park.