Torodora amplignathosa Park & De Prins, 2019

Park, Kyu-Tek & Prins, Willy De, 2019, Re-examination of the type specimens of Lecithoceridae (Lepidoptera), deposited in the Royal Museum for Central Africa (RMCA), Belgium, with descriptions of ten new species from DR Congo belonging to Thubdora Park and Torodora Meyrick, Zootaxa 4571 (4), pp. 451-476 : 463-464

Torodora amplignathosa Park & De Prins , sp. nov.

( Figs. 9 A–I)

Types. Holotype: male, Musée du Congo, [Katanga], Elisabethville [Lubumbashi], i.1934, Ch. Seydel, gen. slide no. CIS-7143/ Park, in RMCA ; Paratypes: 1♂, same data as holotype, Ch. Seydel, gen. slide no. CIS-7156/ Park ; 1♂, same locality, 24.x.1937, Ch. Seydel, gen. slide no. CIS-7248/ Park ; 1♂, same locality, 20.x.1935, Ch. Seydel ; 1♂, same locality, 3.iv.1934, Ch. Seydel ; 1♂, same locality, 7.xii.1933, Ch. Seydel ; 1♂, same locality, 11.xii.1937, Ch. Seydel ; 1♂, same locality, 28.i.1936, Ch. Seydel ; 1♂, same locality, 4.iii.1934, Ch. Seydel ; 1♀, same locality, xii.1949, Ch. Seydel, gen slide no. CIS-7249/ Park ; 1♀, Katanga, Kippo (E’ville), 10.xii.1961, Don R. Maréchal, gen slide no. CIS-7232/ Park, in RMCA .

Diagnosis. The species is similar to the species, Torodora semnodora (Meyrick) and cannot be separated from the latter by superficial characters alone, but it can be distinguished by the male genitalia: uncus longer; gnathos more strongly bent preapically; and valva more elongated with slenderer and longer cucullus, but the aedeagus similar to that of T. semnodora .

Description. Male ( Figs. 9 A–D). Wingspan 18–22 mm.

Head: Vertex yellowish brown dorsally, pale-orange scales on anterior surface, with orange-yellow erect scales laterally. Antenna slightly shorter than forewing; basal segment elongated, pale orange; flagellum serrate, finely ciliate ventrally, brownish ventrally beyond 3/4. Labial palpus upturned; second segment thickened, pale orange with brownish scales covered in basal 2/5 on outer surface; 3 rd segment shorter than 2 nd segment, pale orange dorsally and laterally, dark brown ventrally, sharply pointed apically.

Thorax: Tegula and thorax yellowish brown dorsally. Hind tibia black in basal half on outer surface, then yellowish white beyond; tarsi yellowish white. Forewing slightly dilated distally; ground color deep yellowish brown evenly, often mustard brown, with a small triangular, yellowish white costal patch beyond 2/3 of costa, indistinctly connected to a similar patch before tornus on inner margin; costa slightly arched in basal 1/3, then nearly straight; apex obtuse; termen slightly concave beyond apex, nearly straight; fringe concolorous with ground color. Venation ( Fig. 9D ): with R 1 arising from about 2/5 length of cell; R 2 arising from near of the upper corner of cell; R 3, R 4, and R5 on a common stalk: R 3 and R 4 shortly stalked, R 4 and R 5 stalked beyond middle, R 5 to apex; M 1 far from base of R 3+4 at base; M 2 close to M 3 at base; CuA 1 and CuA 2 short-stalked, about 1/5 of CuA 1; cell closed. Hindwing broader and paler than forewing; venation Rs and M 1 stalked at basal 2/5; M 2 arched near base; M 3 free, nearly approximated to CuA 1 at base. Abdomen: dark brown all around, with broad spinous zones on tergites.

Male genitalia ( Figs. 9 E–G). Uncus elongated, slender, bent downward apically; apex acute. Gnathos large, broad basally, strongly bent beyond middle. Valva broad basally; costa strongly concave medially; cucullus elongated, with rounded ventral margin and concave costal margin, with more or less acute apex, densely haired on surface. Juxta quadrate, with weakly sclerotized caudal margin. Aedeagus shorter than valva, bifurcate apically; dorsal plate in apical part much broader than ventral plate, scerotized, truncated apically; ventral plate much thinner than dorsal one with numerous pegs scattered, with more or less serrate margins. Tergites of abdomen weakly sclerotized, with broad, but short spinous zones ( Fig. 13F ).

Female genitalia ( Figs. 9H, I ). Sternite VIII deeply concave on caudal margin with two patches of strong hairs on either side. Ductus bursae long, about twice the length of corpus bursae, spiral-like. Corpus bursae short, oval with one signum consisting of a basal plate from which two semi-oval projections emerge.

Distribution. DR Congo (Katanga).

Etymology. The species name is derived from the Latin, amplus (= large), referring to the large gnathos in the male genitalia.

Figures

FIGURE 9. Torodora amplignathosa sp. nov.: A, adult, holotype; B, lateral view of labial palpus; C, labels; D, venation; E, male genitalia, holotype, gen. slide no. CIS-7246/Park; F, ditto, aedeagus; G, close-up uncus, gnathos and juxta of a paratype, gen. slide no. CIS-7248/Park; H, female genitalia, with close-up of signum, gen. slide no. CIS-7232/Park; I, abdominal segment VIII + ostium bursae of a female paratype, gen. slide no. CIS-7249/Park.

FIGURE 13. Lecithocera chloroscia Meyrick: A, adult, holotype; B, determined label; C, label; D, male genitalia, holotype, gen. slide no. CIS-7137/Park; E, ditto, aedeagus; F, abdomen with hair-like pencils between segments VII and VIII.