The light-orange color pattern of the forewing is unique, with dark-brown streaks between veins. The pattern is more or less similar to that of Timyra aulonitis Meyrick, 1908 which was described from Sri Lanka, but the species can be distinguished by the venation of both wings, and by the absence of the scale projection in the basal segment of antenna and the scale-tuft in the hind tibia which are unique to Timyra Walker, 1864. The male genitalia are also different from those of the Timyra aulonitis.

Male and female (Figs 1–5, 11): Wingspan, 17–18 mm. Head light orange. Basal segment of antenna (Fig. 5) elongate, light orange, speckled with brownish scales dorsally; flagellum dark brown, sometimes paler from near half to before 7^th. Second segment of labial palpus (Fig. 3) gently arched, shiny pale orange; 3^rd segment slender, as long as 2^nd segment, pale orange speckled with dark-brown scales, with acute apex. Thorax and tegula light orange. Forewing elongate; ground color light orange, clothed with dark-brown scales between veins; costa nearly straight, then gently arched beyond ¾, blackish along anterior margin; apex obtuse; 5-6 large, blackish spots from apex to tornus along termen; termen oblique, not sinuate; fringe light orange in basal 1/3, then dark brown; venation (Fig. 11) with R₁ arising from before middle, R₂ arising near upper corner of cell, R₃ and R₄ stalked near 2/3 length of R₃₊₄₊₅, R₄ and R₅ stalked about 3/5 length; R₅ reach before apex, M₁ close to R₃ at base, M₂ straightly extended from lower margin of discal cell, M₃ on common stalk with CuA₁₊₂, CuA₁ and CuA₂ stalked beyond middle. Hindwing evenly clothed with dark-brown scales, except on veins; light orange along veins; distinct blackish line well-developed from prior to apex to tornus along margin; venation with Rs and M₁ nearly connate, M₂ absent, M₃ and CuA₁ stalked. Fore and mid tibia with black scales at apex. Hind tibia (Fig. 11) with rough, dark-brown scales above, denser near apex; tarsi with black scales at apex on each segment. Abdomen clothed with dark-brown scales; abdominal tergites with dense spines; sternite VIII bilobed medially, as indicated in Fig. 12.

Male genitalia (Figs 6–8). Uncus elongate, heavily sclerotized, broadened basally; apex slightly bifurcate. Gnathos relatively short, small, strongly bent downward beyond 2/3. Tegumen long, relatively broad; anterior margin deeply concave. Valva broad; costa slightly concave beyond middle, nearly parallel to ventral margin; cucullus short; outer margin rounded, with dense setae along margin. Juxta shield-shaped, concave in U-shape on caudal margin, with triangular caudal lobes laterally; anterior margin deeply concave. Vinculum narrow, band-shaped. Saccus short, rounded. Aedeagus rather slender, as long as valva, slightly bent; cornutus long, narrow sclerite, as long as 2/3 length of aedeagus. Abdominal tergites with dense spinose zones; sternite VIII bifurcated medially (arrow indicated in Fig. 12).

Female genitalia (Figs 9, 10). Abdominal sternite VIII weakly sclerotized, deeply emarginated on caudal margin medially. Apophyses anteriores less than half length of apophyses posteriores. Antrum (Fig. 10) cup-shaped, weakly sclerotized, about 1/4 length of ductus bursae. Ductus bursae longer than corpus bursae, broadened in distal 2/5 length, then slightly narrowed; ductus seminalis arising from near conjunction with corpus bursae. Corpus bursae large, ovate; signum absent.

Figures 1–5.

Adult of Caveana senuri Park, sp. n. 1 adult, paratype 2 ditto, lateral view 3 labial palpus 4 hind tibia 5 basal part of antenna.

Figures 6–12.

Genitalia and wing venation of Caveana senuri Park, sp. n. 6 male genitalia 7 aedeagus 8 juxta and vinculum 9 female genitalia 10 ditto, close-up of antrum; 11 wing venation 12 abdominal segment (arrow indicates the bilobed sternite VIII). Scale bar: 1 mm.

♂, Taiwan, Kaohsiung County, Lukuei Forest Station., 750 m, 29 iv- 3 v 1989 (J. Heppner & H. Wang), deposited in MCUF.

1♂, 1♀, same data as the holotype, genitalia slide no. CIS-6138/Park (♂), -6139/Park(♀); 1♀, Taiwan, Nantou Co., Lu-shan, 30 km E Wushe, 1000 m, 27–31 v 1980 (D.R. Davis), gen. slide no. USNM-92404; 1 gen. slide no. CIS-6138/Park; 1♂, Taiwan, Nantou Co., 15 km E of Puli, 700 m, 6 v 1989 (J. Heppner & H. Wang).

Taiwan.

The specific epithet is a Korean term, senuri, meaning “a new country”.

This species is one of the largest species of Lecithocera. It is externally similar to Lecithocera praeses Meyrick, 1919 from North India, but can be distinguished by different following genital features: male genitalia with uniquely specialized cornuti of aedeagus, consisting of a heavily sclerotized ellipticity with an acute spine apically, a heavily sclerotized, elongate trapezoidal plate, and a series of spines, as in Figs 17, 18; and also cucullus with more gently arched ventral margin and juxta not so much produced latero-caudally. Female genitalia with cup-shaped antrum, instead of the elongate, more or less triangular antrum in Lecithocera praeses, and the signum strawberry-shaped, located medially, whereas it is transverse elongated and located posteriorly in the latter.

Male and female (Figs 13–15). Wingspan, 23–26 mm. Head yellowish brown medially on vertex, with pale grayish-orange erect scales laterally; frons pale grayish-orange. Basal segment of antenna rather short, pale grayish orange; flagellum orange white to pale grayish–orange, with distinct brownish annulations in apical third. Second segment of labial palpus (Fig. 14) thickened with appressed scales, grayish orange on outer surface, speckled with dark-brown scales in basal 2/3, orange white to pale grayish orange on inner surface; 3^rd segment slender, shorter than 2^nd segment, dark brown on ventral surface, with acute apex. Thorax and tegula yellowish brown. Forewing elongate; ground color pale grayish orange, speckled with fine dark-brown scales, more dense posteriorly; first discal stigma small, dark brown at middle of cell; second stigma larger, dark brown, at end of cell; basal blackish streak running along costa in ¼ length; costa nearly straight, then gently arched beyond ¾; apex obtuse; termen oblique, not sinuate, dark-brown scales along margin; fringe orange white in basal 1/3, then brownish; venation with R₁ arising from before middle, R₂ arising near upper corner of cell, distance between R₁ and R₂ about 2.5 times of distance between R₂ and R₃; R₂ free; R₃ and R₄ stalked near middle; R₅ reach apex; M₁ at middle between R₃ and M₂, M₂ nearly parallel with M₁; M₃ at middle between M₂ and CuA₁₊₂; CuA₁ and CuA₂ very short-stalked. Hindwing pale gray, broader than forewing; apex obtuse; termen oblique, slightly sinuate; fringe grayish, with orange white basal line; venation with, M₂ well developed, connected to M₃ with cross vein; M₃ and CuA₁ short-stalked; cell nearly closed with an oblique cross vein. Hind tibia with orange-white rough scales above. Abdomen with pale grayish-orange scales dorsally, with a well-developed scales-tuft dorsally in terminal segment, as indicated in Fig. 15; sternite VIII bilobed medially, as indicated in the Fig. 12.

Male genitalia (Figs 16–22). Basal lobes of uncus more or less semiovate, gently concave on caudal margin. Gnathos (Fig. 19) relatively slender; apical part heavily sclerotized, strongly bent downward. Tegumen weakly sclerotized with anterior margin incised medially. Valva broad at base, width as wide as length of tegumen; costal bar connecting with tegumen strong, angled medially; ventral margin gently concave before cucullus; cucullus elongate, narrowed towards apex, dense setose, with bundle of setae at lower corner at base, apex rounded; sacculus sclerotized, slender. Juxta shield-shaped, with small projection at middle on anterior margin; caudal margin slightly emarginated, with crescent extension laterally. Vinculum broad, with round apex. Saccus round. Aedeagus (Figs 17, 18) with uniquely specialized cornuti of aedeagus, consisting as heavily sclerotized ellipticity with acute spine at apex, about half length of aedeagus, and a row of short spines. Abdominal tergites without spines; sternite VII-VIII as figured in Fig. 20.

Female genitalia (Figs 21–23). Abdominal sternite VIII weakly sclerotized, nearly straight anterior margin. Apophyses anteriores thick, short, nearly 1/5 length of apophyses posteriors. Antrum (Fig. 22) cup-shaped, weakly sclerotized, about 2/3 length of abdominal sternite VIII. Ductus bursae slightly longer than corpus bursae, shortly necked between antrum and ductus bursae, then broadened; ductus seminalis as broad as ductus bursae, arising from middle. Corpus bursae large, elongate; signum strawberry-shaped, with dense conic spines.

Figures 13–23.

Lecithocera dondavisi Park, sp. n. 13 adult, paratype 14 labial palpus 15 terminal segments of abdomen (arrow indicates the dorsal scale-tuft) 16 male genitalia 17 aedeagus 18 close-up of cornuti 19 close-up of signum 20 abdominal sternite VIII 21 female genitalia 22 close-up of antrum 23 close-up of signum. Scale bar: 1 mm.

. ♂, Taiwan, Hsinchu County., Kuangwu, 24-25 vi 1985 (J. Heppner & H. Wang), gen. slide no. CIS-6168/Park, deposited in MCUF.

4 ♂, 1♀, same data as the holotype, gen. slide no. CIS- 6192/Park(♀); 1♂, Taiwan, Nantou Co., Meifeng 30 km S Tayuling 2200 m, 1-8 vi 1980 (D. R. Davis), gen. slide no. USNM-92499/Park.

Taiwan.

The species is named after Dr. Donald R. Davis, Curator of Lepidoptera, US National Museum Natural History, Smithsonian Institution, USA, an authority on the microlepidoptera of the world.