Deltoplastis ovidiscalis Yu & Park & Wang 2019, sp. nov.
Creators: name: Yu, Shuai
name: Park, Kyu-Tek
name: Wang, Shuxia
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Lecithoceridae
Deltoplastis
Deltoplastis ovidiscalis

description: Deltoplastis ovidiscalis Park et Wang, sp. nov.
(Figs 4, 12, 17)
Deltoplastis commatopa auct., nec Meyrick, 1932: Wang et al., 2015: 217, misidentification.
Type material. VIETNAM: Holotype ♂, Cuc Phuong Nat. Park, Ninh Vinh Province, 200 m, 1–2.VII.2008, leg. JB Heppner, slide No. CIS-6223.
Paratypes. Ninh Vinh Province: 1♂, Cuc Phuong Nat. Park, 450 m, 24.IV.2006, leg. KT Park, SR Kim & TM Kang, slide No. NKU-1403/WYQ; 1♀, Cuc Phuong Nat. Park, 155 m, 30.VII.2008, leg. JB Heppner, slide No. CIS-6261. Vinh Phuc Province: 1♀, Tam Dao Nat. Park, 950 m, 24.V.2007, leg. KT Park.
Description. Adult (Fig. 4). Wingspan 17.0–18.0 mm.
Head yellowish brown, with erect pale orange scales laterally. Antenna with scape elongate, pale orange on dorsal surface, dark brown on ventral surface; flagellum creamy white, with distinct dark brown annulations. Second segment of labial palpus thickened, greyish orange on outer surface, with white apex; third segment slender, longer than second, strongly recurved, dark brown on outer surface.
Thorax and tegula yellowish brown. Forewing with costal margin slightly arched before middle; basal streak on costal margin black, reaching 1/3 length of costal margin; ground color pale greyish orange, markings dark brown: median patch sub-triangular, edged with pale orange scales on inner and outer margins, outer margin convex medially, shorter than inner margin, inner margin oblique, reaching near costal margin and then extending obliquely to costal margin by a narrow black streak; discocellular stigma spoon-shaped, edged with orange-white scales along margins; subterminal patch trapezoidal, edged with orange-white line along margins, outer margin oblique, slightly concave, extending from costal margin to dorsum, narrowly talmost parallel with termen; narrow, dark brown stripe arising from below discocellular stigma obliquely downward to lower corner of subterminal patch; terminal zone brown, with dark brown lines along veins; black line from beyond subterminal patch along costal margin through termen to tornus; apex produced triangularly; termen slightly concave below apex; fringe with pale orange basal line and brown median band, pale orange distal half. Hindwing brownish grey, darker along veins; apex sharply produced; fringe brownish grey, with pale orange basal line. Hindtibia with hair-like, dark brown scales, broad pale orange band and narrow dark brown band before apex, white apically; 1 st tarsus orangewhite in basal 2/5, then dark brown beyond.
Male genitalia (Fig. 12). Uncus broad at base, narrowed toward apex, slightly curved ventrad. Gnathos with median process broad at base, narrowed toward apex, strongly bent subapically, sharply pointed apically. Valva broad at base, narrowed to middle; costa deeply concave at middle; ventral margin nearly straight in basal 2/5, then slightly concave; sacculus broad basally, narrowly terminated at basal 1/3 length of ventral margin; cucullus triangular, distinctly narrowed toward apex, nearly right angled at lower corner, slightly concave medially on outer margin. Juxta trapezoidal, concave on caudal margin, with produced latero-caudal lobes; caudal margin distinctly shorter than anterior margin; anterior margin with a small process at middle; lateral process slightly posterior to middle, small, semi-ovate. Vinculum narrow, banded. Aedeagus as long as valva, thicker toward base, S-shaped, curved at basal 1/4 and beyond basal 2/3, roughly dentate apically; cornuti consisting of a row of minute spines, about 2/5 length of aedeagus.
Female genitalia (Fig. 17). Abdominal sternite VIII broadly concave at middle on posterior margin. Apophyses anteriores approximately 2/3 length of apophyses posteriores. Ostium bursae nearly straight on caudal margin. Ductus bursae funnel-shaped basally, broad at basal 1/3, twisted twice distally; ductus seminalis slender, arising from basal 1/3 of ductus bursae. Corpus bursae elliptical, approximately half length of ductus bursae; signum ovate, large, about 2/3 length of corpus bursae, with numerous minute denticles on surface.
Diagnosis. This species is superficially similar to D. commatopa Meyrick, 1932 and D. anatoliana sp. nov. It can be distinguished from D. commatopa in the male genitalia by the juxta lacking a caudal plate and the cornuti consisting of only a row of minute spines; whereas in D. commatopa, the juxta has a triangular caudal plate and the cornuti consist of a bundle of large spines and numerous denticles. The differences between this new species and D. anatoliana sp. nov. have been stated in the previous species. The new species is similar to D. maehongsanensis Park et S. Wang, 2015 in the male genitalia, but it differs from the latter by the stouter cucullus of the valva and the costa deeply concave, and the caudal margin of the juxta much shorter than the anterior margin; whereas the valva has a more elongate cucullus, the costa is shallowly concave, and the caudal margin of the juxta is as wide as the anterior margin in D. maehongsanensis.
Distribution. Vietnam (North).
Etymology. The specific epithet is derived from the Latin ovum and discus, referring to the ovate signum in the female genitalia.
Notes. The new species is described based on the specimens collected from Vietnam and misidentified by Wang et al. (2015) as D. commatopa Meyrick, 1925. Deltoplastis commatopa was originally described based on a female (Clarke 1965), and the male was reported for the first time by Park & Heppner (2001).
description: Published as part of Yu, Shuai, Park, Kyu-Tek & Wang, Shuxia, 2019, Seven new species of the genus Deltoplastis Meyrick, 1925 (Lepidoptera: Lecithoceridae), pp. 155-167 in Zootaxa 4619 (1) on pages 159-160, DOI: 10.11646/zootaxa.4619.1.7, http://zenodo.org/record/3248487