Dusungwua paripalpa Ren & Li, 2020

Ren, Yingdang, Yang, Linlin, Liu, Hongxia & Li, Houhun, 2020, Taxonomic review of the genus Dusungwua Kemal, Kizildağ & Koçak, 2020 (Lepidoptera: Pyralidae), with descriptions of six new species and propositions of synonyms, Zootaxa 4894 (3), pp. 341-365 : 353

Dusungwua paripalpa Ren & Li , sp. nov.

( Figs 1 , 10 , 21 )

Type material. Holotype. [ CHINA] ♂, Zhangjiajie (29°07΄N 110°29΄E), Hunan, 650 m, 11-VIII-2001, coll. Shulian Hao, gen. slide No. RYD04803 . Paratype. [ CHINA] 1 ♂, same data as for holotype .

Diagnosis. This new species is similar to D. ohkunii . It can be distinguished by the second and third segments of the labial palpus about equal length; the forewing with a few scattered grayish white scales not forming a pattern; the gnathos constricted near middle, slightly expanded in distal half, and the lobate juxta with the lateral lobe slightly incurved distally in the male genitalia. In D. ohkunii , the second segment of the labial palpus is 1.5 times length of third segment; the forewing is covered with numerous grayish white scales that form a wedge-shaped grayish white blotch between the antemedial and the postmedial lines; the clubbed gnathos is slightly broader at middle, and the hillock-shaped lateral lobe of the juxta is not incurved distally in the male genitalia.

Description. Adult ( Fig. 10 ) with wingspan 16.0̅18.0 mm. Head grayish brown. Antenna brown, scape about 1.5 times as long as wide; male flagellum simple, neither constricted nor incurved basally. Labial palpus upturned beyond vertex; first segment grayish white; second and third segments brown, about equal length. Maxillary palpus grayish brown. Patagium, tegula and thorax blackish brown. Forewing fuscous brown, with scattered grayish white scales; antemedial line grayish white, from costal 2/5 obliquely outward to dorsal 3/7, its inner margin bordered with an indistinct, ovate, blackish brown patch near dorsum; discal spots blackish brown, fused, crescent; postmedial line grayish white, indistinct, incurved at M 1 and CuA 2; terminal line brown; cilia grayish brown to blackish brown. Hindwing and cilia grayish brown. Fore leg grayish brown, midleg and hindleg grayish white; tarsi fuscous brown, white at apex of each tarsomere. Abdomen with dorsal surface brown, darker in basal half of each segment, ventral surface yellowish brown.

Male genitalia ( Fig. 21 ). Uncus triangular, about same length as width at proximal base, gradually narrowed to rounded apex. Gnathos about 4/7 length of uncus, constricted near middle, slightly expanded from middle to before apex; apex attenuated, bifid. Transtilla produced in U shape posteriorly; postero-lateral lobe three times as long as wide, fingerlike, uniform in width, rounded at apex. Valva narrow, four times as long as wide, almost parallel-sided; clasper an indistinct mastoid process at middle near base; costa extending to near end of valva; sacculus 2/5 length of valva, slightly sinuate, narrowed from somewhat broad base to pointed apex. Juxta semicircular; lateral lobe slightly shorter than gnathos, slightly incurved distally, truncate apically, bearing long setae. Vinculum U-shaped, same length as maximum width, almost straight on anterior margin. Phallus cylindrical, slightly curved, about 4/5 length of valva, with sclerotized crimples in distal 2/3.

Female. Unknown.

Distribution. China (Hunan).

Etymology. The specific name is derived from the Latin prefix pari -, meaning parity, and the morphological term palpus, referring to the second and third segments of the labial palpus about equal length.

Figures

FIGURE 1. Distribution of Dusungwua in China ● D. antennalveata sp. nov.; ♣ D. basinigra sp. nov.; ■ D. dichromella; ♠ D. fascecornuta sp. nov.; ♥ D. karenkolla; ▼D. ohkunii; ▲D. paradichromella; ☆ D. paripalpa sp. nov.; ♦ D. quadrangula; Ǫ D. similiquadrangula sp. nov.; □ D. strictivinculum sp. nov.

FIGURES 7–10. Adults of Dusungwua spp. 7, D. karenkolla, ♀; 8, D. ohkunii, ♂; 9, D. paradichromella, ♀; 10, D. paripalpa sp. nov., holotype, ♂ (Scale bars: 7–10 = 5.0 mm; 7a–10a = 0.5 mm).

FIGURE 21–22. Male genitalia of Dusungwua spp. 21, D. paripalpa sp. nov., holotype, silde No. RYD04803; 22, D. quadrangula, slide No. RYD04467. (Scale bar = 0.5 mm).