Caveana plenalinea Park

Park, Kyu-Tek & Bae, Yang-Seop, 2017, Descriptions of two new species of Torodorinae (Lepidoptera, Lecithoceridae), with three new records of Torodora Meyrick from Laos, Zootaxa 4268 (2), pp. 285-290 : 286

Caveana plenalinea Park , sp. nov.

( Figs. 1, 3, 3 a–c, 4)

Type. Holotype: male, Ban Tha , Xiengkhouang Prov., 7 viii 2016, 1,298 m, (19°45'N, 103°33'E), coll. Bae YS et al., gen. slide no. CIS-6829.

Diagnosis. The forewing color pattern of this new species is unique, with light-orange ground color and dense dark brown scales between the veins. It is hardly distinguished from C. senuri by superficial characters, and it can be distinguished by the light orange to gray flagellum of the antenna, which is dark brown in C. senuri . The male genitalia are also similar to each other, but the new species is distinguished from C. senuri by the following characters: uncus more slender; valva more elongate, nearly parallel-sided before cucullus, costa nearly straight before 3/4, then slightly upturned beyond; cucullus less produced apically; outer margin more rounded; juxta longer, caudal margin narrower; abdominal sternite VIII more sharply produced as in figure 3c.

Description. Male ( Figs. 1, 4 ). Wingspan 17.0 mm. Head light orange. Basal segment of antenna elongate, light yellow, partly speckled with black scales; flagellum light orange to shiny gray. Second segment of labial palpus slender, slightly upturned; 3rd segment as long as 2nd segment. Tegula and thorax light orange. Hind tibia densely setose above, with black scales at middle and apex; tarsi with black scales at apex on each segment. Forewing ground color light orange, clothed with black scales between veins; costa nearly straight, then gently arched beyond 3/4; six distinct black spots from apex to tornus along termen, spot at apex largest; fringe light orange in basal 1/3, then gray distally. Hindwing with similar color pattern as forewing, evenly clothed with dark brown scales, except on veins, with black line from prior to apex beyond tornus along margin; termen nearly not sinuate, oblique.

Male genitalia. ( Figs. 3, 3 a–c). Uncus elongate, heavily sclerotized. Gnathos relatively small, short, strongly bent downward beyond 2/3, with acute apex. Tegumen with V-shaped anterior margin. Valva with almost parallel sides before 3/4; costa slightly upturned from beyond 2/3; cucullus short, rounded outer margin, with dense setae along margin. Juxta shield-shaped, length about 1.5 times of width; caudal margin concave in U-shape, width between caudal lobes as same as that of basal width of a lobe. Vinculum narrow, band-like. Aedeagus slender, slightly arched on ventral margin at basal 1/3, as long as valva; cornutus long, narrow, as long as 3/4 length of aedeagus, flattened apically as spoon-like. Abdominal sternite VIII sharply produced, bifurcate apically.

Distribution. Laos (Xiengkhouang Prov.).

Etymology. Latin, plenus (= full, plenty) and linea (= line), referring to many dark brown lines on the forewing.

Figures

FIGURES 1 – 6. Adults and male genitalia: 1, Caveana plenalinea Park, sp. nov.; 2, Antiochtha hemitatos Park, sp. nov.; 3, male genitalia of C. plenalinea Park; 3 a, ditto, aedeagus; 3 b, ditto, abdomen; 3 c, ditto, eighth abdominal segment; 4, venation of A. hemiodes Park; 5, male genitalia of A. hemitatos Park; 6, ditto, different view; 6 a, ditto, tegumen + uncus; 6 b, ditto, aedeagus; 6 c, ditto, abdomen. Scale bar: 1 mm.