Nosphistica albimaculata Yu et Wang, 2019

Yu, Shuai & Wang, Shuxia, 2019, Taxonomic study of the genus Nosphistica Meyrick, 1911 (Lepidoptera Lecithoceridae) from China, with descriptions of seven new species, Zootaxa 4664 (4), pp. 497-517 : 515-516

Nosphistica albimaculata Yu et Wang , sp. nov.

( Figs 17 , 30 , 38 )

Type material. CHINA, Hainan Province: Holotype ♂ , Jianfengling , Ledong County, 770 m, 30.V.2015, leg. Beixin Cong, Wei Guan & Sha Hu, slide No. YS 17093 . Paratypes (4♂, 5♀): 2♂, 3♀, 29.V–5.VI.2015, other same data as holotype, slide Nos. YS17137 ♂, YS17139 ♀; 1♂, Mt. Diaoluo , Lingshui County, 1.VI.2007, leg. Zhiwei Zhang & Weichun Li, slide No. ZYM06428 ; 1♂, Shuiman, Wuzhishan , 766 m, 8.VII.2015, leg. Qingyun Wang, Suran Li & Mengting Chen, slide No. YS 17097 ; 1♀, Tianchi, Jianfengling , Ledong County, 787 m, 13.I.2016, leg. Kaijian Teng, Xia Bai & Mengting Chen, slide No. YS 17153 ; 1♀, Shuiman, Wuzhishan , 766 m, 27.II.2017, leg. Qingyun Wang, Suran Li & Shengnan Zhao, slide No. YS 17138 .

Diagnosis. This species is similar to N. abunda sp. nov. in the male genitalia by the valva slightly widened apically, but it can be distinguished from the latter by the sub-triangular basal plate of the gnathos and the elongate digitate lateral processes of the juxta in the male genitalia; while in N. abunda sp. nov., the basal plate of the gnathos is sub-rectangular, and the lateral processes of the juxta are triangular.

Description. Adult ( Fig. 17 ) wingspan 14.0–20.0 mm.

Head orange white, mixed with dark brown scales. Antenna orange white; scape elongate, with dark brown scales; flagellum annulated with dark brown dorsally. Labial palpus pale orange, mixed with dark brown; second segment thickened; third segment slender, shorter than second segment.

Thorax and tegula orange white, with dark brown scales. Forewing with costal margin slightly arched, apex obtusely produced, termen gently concave; ground color dark brown mixed with orange-white scales, except below costal margin yellowish brown mottled dark brown from base to 4/5 and pale orange from distal 1/5 to apex, yellowish brown mottled dark brown along veins; costal margin with two dark brown spots spaced along distal 1/5; discal stigma small, rounded, dark brown, surrounded by orange-white scales; discocellular stigma clavate, dilated anteriorly, dark brown, edged with white along inner and outer margins; terminal line dark brown; fringe dark brown, mixed with dark yellowish brown. Hindwing with costal margin straight from base to 3/4, gently concave preapically, apex produced, termen sinuate; ground color pale grey except dark brown between costal margin and M 3 from before middle to termen, with yellowish-brown scales along veins and around apex; area between 3A and dorsum blackish brown, interrupted medially by a white patch; discocellular stigma sub-rectangular, white; subterminal line white, running from distal 1/5 of costal margin to tornus, arched outward; fringe dark brown, mixed with yellowishbrown scales; basal line orange white. Legs orange white, mixed with dense dark brown scales; mid and hind tibiae with tufts of long scales before middle and at apex; first tarsomere of hind tarsus with a tuft of scales apically.

Male genitalia ( Fig. 30 ). Tegumen with paired, symmetric, large sclerotized processes from posterior margin, folded ventrad distally, connected by a narrow band apically. Uncus short, setose, extended horizontally, arched medially on posterior margin. Gnathos with basal plate sub-triangular and bilobate posteriorly; median process curved ventrad, broad at base, tapered to apex. Valva with basal 1/4 broad, then narrowed to middle, slightly widened from middle to obtusely rounded apex, setose on distal half; sacculus about half length of ventral margin, wide at base, narrowed to before middle, then uniform. Juxta with basal part heavily sclerotized, distal part membranous, trapezoidally produced anteromedially; lateral process elongate digitate, arising from near base, longer than half length of juxta, uniformly wide for basal 2/3, then slightly narrowed to obtuse apex, setose distally. Vinculum broad, rounded anteriorly. Aedeagus shorter than valva, almost uniformly wide, slightly curved, with a small tube bearing dense granules before apex.

Female genitalia ( Fig. 38 ). Abdominal sternite VIII emarginated at middle on posterior margin. Apophyses anteriores about 2/3 length of apophyses posteriores. Ductus bursae approximately as long as corpus bursae; ductus seminalis arising from about middle of ductus bursae, much slender. Corpus bursae large, oblong; signum small, fusiform, with dense denticles, at posterior 1/4.

Distribution. China (Hainan).

Etymology. The specific epithet is derived from the Latin albus (= white) and maculatus (= maculation), referring to the white discocellular stigma on the hindwing.

Figures

FIGURES 12-17. Adults of Nosphistica spp. 12. N. fenestrata, ♀; 13. N. fusoidea sp. nov., holotype, ♂; 14. N. grandiunca sp. nov., paratype, ♂; 15. N. orientana, ♀; 16. N. paramecola, ♀; 17. N. albimaculata sp. nov., holotype, ♂. Scales=2 mm

FIGURES 24-30. Male genitalia of Nosphistica spp. 24. N. elliptica sp. nov., holotype, LSR13154; 25. N. fenestrata, slide No. LSR13153; 26. N. fusoidea sp. nov., holotype, slide No. YS17123; 27. N. grandiunca sp. nov., holotype, slide No. LSR13227; 28. N. orientana, slide No. LSR13163; 29. N. paramecola, slide No. LSR13156; 30. N. albimaculata sp. nov., holotype, slide No. YS17093. Scales=0.5 mm.

FIGURES 35-38. Female genitalia of Nosphistica spp. 35. N. grandiunca sp. nov., paratype, slide No. YS18002; 36. N. orientana, slide No. YS17141; 37. N. paramecola, slide No. YS17170; 38. N. albimaculata sp. nov., paratype, slide No. YS17139. Scales=0.5 mm