Torodora spathiana Park, 2021

Park, Kyu-Tek & Bae, Yang-Seop, 2021, Five new species of the genus Torodora Meyrick (Lepidoptera, Lecithoceridae Torodorinae) from Cambodia, with a tentative check-list of the genus, Zootaxa 4949 (1), pp. 102-114 : 106-107

Torodora spathiana Park , sp. nov.

( Figs. 2A–F )

Type. Holotype: ♂, Cambodia, Mondulkiri, Seima Biodiversity Conservation area , 3–8 vii 2002, leg. Bae & Chae; gen. slide no. CIS-6063.

Diagnosis. The male genitalia of the new species are similar to those of T. parotidosa ( Wu, 1994) , which are known in China and Thailand, but it can be distinguished by the valva extremely narrowed beyond the rectangular basal part, and the juxta with asymmetrical latero-caudal lobes. The new species is also differentiated from the latter by the more or less slender 2 nd segment of labial palpus, whereas T. parotidosa has rough scales ventrally.

Description. Adult ( Figs. 2A–C ). Wingspan 19.0 mm.

Head: Yellowish brown dorsally. Antenna slightly longer than forewing; scape elongated, not dilated apically, grayish orange; flagellum grayish orange, lacking annulations, not ciliate. Second segment of labial palpus thickened; 3 rd segment broken.

Thorax: Tegula and thorax yellowish brown dorsally. Hind tibia with rough scales above from base to near apex; apex with white scales. Forewing ground color grayish orange to yellowish brown, without distinct markings; costa slightly arched around basal 1/3 and beyond 2/3; apex obtuse; termen slightly concave; fringe concolorous with ground color; venation with R 1 arising from beyond middle; distance between origins of R 2 and R 3 less than 1/2 length of R 1 and R 2; R 3 stalked with R 4+5 for basal 1/3 length; R 4 and R 5 stalked for more than basal 2/3; R 5 to termen; M 1 remote from R 3+4; M 2 nearly parallel to M 1; CuA 1 and CuA 2 stalked for basal half; cell closed. Hind wing paler and broader than forewing; venation with M 2; close to M 2; M 3 and CuA 1 nearly connate at base; apex obtuse; termen slightly concave; fringe concolorous with ground color.

Abdomen ( Fig. 3F ): Spinous zones on dorsal surface nearly triangularly developed.

Male genitalia ( Figs. 3D, E ). Uncus elongated, heavily sclerotized, bent downward, much exceeded posterior margin of the basal plate of gnathos. Median process of gnathos narrowed toward apex, strongly bent beyond 2/3, sharply pointed apically. Tegumen weakly sclerotized, concave in inverted V-shape on anterior margin. Valva broad at base, quadrate in basal part, abruptly narrowed medially; cucullus broadly expanded into spoon-shaped, with round outer margin; sacculus not developed. Vinculum banded, sclerotized. Juxta shield-shaped; latero-caudal processes asymmetrical, left one longer and right one about 1/2 length of the left, with median ridge in anterior half. Aedeagus very stout basally; width of basal half about 1.5 times than the width of basal part of valva, as long as valva; cornuti consisting of a heavily sclerotized, crescent plate with wrinkled tube basally beyond middle, a long, narrow sac containing numerous conic spines from near base to 2/3 length of aedeagus.

Female unknown.

Distribution. Cambodia (Mondulkiri Prov.).

Etymology. The species name is derived from the Latin, spatha (= spoon-shaped, paddle), with a Latin suffix, - anus, referring /to the paddle-shaped valva in the male genitalia.

Figures

FIGURE 2. Torodora spathiana Park, sp. nov.: A, adult, holotype; B, labial palpus, in lateral view; C, hind tibia; D, male genitalia, gen. slide no. CIS-6063; E, aedeagus; F, abdominal segments VIII; G, genitalia of T. paratidosa (Wu), gen. slide no. CIS-6689 from Cambodia. Scale bar for genitalia and aedeagus: 1.0 mm.

FIGURE 3. Torodora alterniella Park, sp. nov.: A, adult, paratype from Laos; B, labial palpus and antenna; C, male genitalia, gen. slide no. CIS-8097, paratype from Laos; D, ditto, aedeagus; E, aedeagus of holotype, gen. slide no. CIS-6097; F, abdominal segments V–VIII, holotype; G, female genitalia., gen. slide no. CIS-8082 from Cambodia. Scale bar for genitalia and aedeagus: 1.0 mm.