Lecithocera laticuculla sp. nov.

urn:lsid:zoobank.org:act: AA93DDEA-A57C-4AAA-B206-F9087196C1AE

Figs 3B, 7D, 12B, 16E, 19D

Diagnosis

The new species is similar to L. oxycona Meyrick, 1910 in the male genitalia. It can be distinguished by the forewing without a band, the sacculus nearly uniformly wide, and the juxta with a small U-shaped notch at middle on posterior margin in the male genitalia; in L. oxycona, the forewing has a creamy white band (Gozmány 1978: pl. 4 fig. 32), the sacculus is narrowed from the base to the apex, and the juxta is broadly concave in the quadrate on the posterior margin (Gozmány 1978: pl. 24 fig. 32).

Etymology

The specific epithet is derived from the Latin “ latus ” and “ cucullus ”, referring to the wide cucullus in the male genitalia.

Type material

Holotype

CHINA – Zhejiang Province • ♂; Suichang County, Mt Jiulong; 28º15′ N, 118º30′ E; 360 m a.s.l.; 22 May 2017; S.N. Qian and G.E. Lee leg.; slide no. YS19669; NKU.

Paratypes (4 ♂♂, 5 ♀♀)

CHINA – Zhejiang Province • 3 ♂♂, 5 ♀♀; same collection data as for holotype except 21–24 May 2017; slide nos YS19684 ♂, YS19685 ♀; NKU . – Guangxi Zhuang Autonomous Region • 1 ♂; Jinxiu County, Hekou; 650 m a.s.l.; 28 Apr. 2008; H. Zhen and L. Zhang leg.; slide no. ZMR10076; NKU .

Description

ADULT (Figs 3B, 7D). Wingspan 15.5‒18.0 mm. Head and antenna pale orange. Labial palpus with second palpomere pale orange on inner surface, yellowish brown on outer surface; third palpomere pale orange dorsally, yellowish brown ventrally, as long as second palpomere. Thorax and tegula yellowish brown. Forewing with costal margin slightly arched, apex broadly rounded, termen oblique; ground colour pale brownish yellow, mixed with yellowish brown and dark brown scales; markings blackish brown: basal streak wide at base; discal stigma small, rounded; discocellular stigma larger, elliptical; tornal streak diffused to below discocellular stigma; fringe pale brownish yellow, basal line orange white; R 3 close to R 4+5 at base, R 4 and R 5 stalked for about 2/5 length of R 4, R 5 to apex, M 2 and M 3 separated, CuA 1 and CuA 2 short-stalked. Hindwing and fringe deep grey; fringe with basal line orange white; M 3 and CuA 1 long-stalked.

MALE GENITALIA (Fig. 12B). Uncus broadly V-shaped; caudal lobe short digitiform, rounded apically. Gnathos with lateral arm broad taenioid; median process narrowly elongate, wide at base, narrowed to distal 1/5, then slender to pointed apex, gently curved ventrad preapically. Valva broad basally, slightly narrowed to cucullus; cucullus about half length of valva, extending obliquely dorsad, wide, elliptical, broadly rounded at apex, densely setose, with two rows of bullet-shaped setae along basal half of ventral margin; costal bar narrow in basal half, widened in distal half, triangularly produced at middle on dorsal margin; sacculus uniformly wide, taenioid, reaching cucullus. Vinculum broad; saccus not developed. Juxta shield-shaped, with U-shaped notch at middle on posterior margin, with small projection at middle on anterior margin; posterior lobe narrow taenioid, extending outward. Aedeagus slightly shorter than valva, wide at base, slightly narrowed to basal ⅔, then parallel-sided, gently curved, with two dorsal denticles, with dense granules in vesica; cornuti consisting of two clusters of spines at basal 2/5, long bar about 3/5 length of aedeagus bearing apical tooth and forked sclerite situated beyond middle.

SEVENTH ABDOMINAL STERNITE (Fig. 16E). Anterolateral rib bar-shaped, curved at middle, reaching before posterior margin of sixth abdominal sternite; posterolateral lobe heavily sclerotized, elongate triangular, gently concave on inner margin.

FEMALE GENITALIA (Fig. 19D). Eighth abdominal sternite slightly concave at middle on posterior margin. Apophyses posteriores about twice as long as apophyses anteriores. Antrum cup-shaped, length equal to width, spiculose. Ductus bursae as long as corpus bursae, broad, with sclerite near origin of ductus seminalis; ductus seminalis arising from posterior ¼, broad. Corpus bursae elongate elliptical; signum large elliptical, denticulate, situated posterior to middle.

Distribution

China (Guangxi, Zhejiang).