Coptotriche asiana Diskus & Stonis 2021, sp. nov.
Creators: name: Xu, Jiasheng
name: Dai, Xiaohua
name: Rimšaitė, Jolanta
name: Diškus, Arūnas
name: Stonis, Jonas R.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Tischeriidae
Coptotriche
Coptotriche asiana

description: Coptotriche asiana Diškus & Stonis, sp. nov.
http://zoobank.org/NomenclaturalActs/ D53FA683-FDEA-4710-97DB-73B79D02E66E
(Figs. 7–11, 29–48, 62–79)
Type material. Holotype: ♂, VIETNAM, Lao Cai Province, 15 km NW of Sa Pa, 22°20’58”N, 103°46’16”E, elevation ca. 1920 m, mining larva on Symplocos sumuntia Buch. -Ham. ex D. Don (Symplocaceae), 20.ii.2015, ex pupa iii.2015, field card no. 5191, A. Diškus, genitalia slide no. AD1044 (ZIN). Paratypes (13 ♂, 5 ♀): 6 ♂, 2 ♀, same label data as holotype, genitalia slides nos. AD 1043♂ (from adult in pupal exuviae), AD 1041♀ (ZIN); 5 ♂, 3 ♀, 15 km NW of Sa Pa, 22°20’53” N, 103°46’15” E, elevation ca. 1910 m, mining larvae on Symplocos poilanei Guill. (Symplocaceae), 20.ii.2015, ex pupa iii.2015, field card no. 5193, A. Diškus, genitalia slides nos. AD 1057♂, AD 1053♀ (GNU); 2 ♂, 15 km NW of Sa Pa, 22°21’2”N, 103°46’17”E, elevation 1920 m, mining larva on Symplocos glauca (Thunb.) Koidz. (Symplocaceae), 21.ii.2015, ex pupa iii.2015, field card no. 5197, A. Diškus, genitalia slides. nos AD 944♂ (from adult in pupal exuviae), AD 1054♂ (NRC).
Diagnosis. Externally, C. asiana sp. nov. is most similar to C. turpinia sp. nov. (described above). From the latter, C. asiana often differs in the very distinctive dark marking of the forewing and the dark hindwing; however, some specimens of C. asiana may be undistinguishable from C. turpinia. In the male genitalia, the combination of a long distal process of the vinculum (Figs. 36, 39), strongly excavated valva (Figs. 36, 37, 42), and a long, anteriorly distinctly thickened tegumen (Fig. 38) distinguish this new species from the most similar C. symplocosella Kobayashi & Hirowatari (see Kobayashi et al. 2016) and C. turpinia. The host plant genus Symplocos is shared only with the Japanese C. symplocosella, but the latter possesses different genitalia with a short vinculum and slender valva.
Male (Figs. 8–11). Forewing length 4.1–4.5 mm, wingspan 9.0– 9.8 mm (n = 10). Head: frons, palpi and pecten glossy yellowish cream; frontal tuft comprised of yellowish cream lamellar scales and grey, long, piliform-like scales (Figs. 9, 10); collar ochreous yellow; antenna significantly longer than one half of the length of forewing; flagellum ochre-yellow; sensilla whitish cream, very fine, rather indistinctive. Thorax: ochreous yellow, sometimes with some brown scales distally; tegula ochreous yellow. Forewing ochreous yellow to bright ochre, with some sparsely distributed brown-black or black scales which apically form a distinctive C-shaped streak and small spot on tornus; fringe ocherous yellow, without fringe line; forewing underside densely speckled with ochre-brown scales, except for a large area below the fold. Hindwing dark grey on upper side and underside but may look paler depending on angle of view (Fig. 8); fringe ochre glossy, pale grey. Legs pale ochre-yellow, darkened with blackgrey scales on upper side. Abdomen yellowish grey on upper side and underside; genital segments large, yellowish cream; anal tuft dorsal, long, ochre-yellow to yellowish cream.
Female. Forewing length 4.5–5.0 mm, wingspan 9.8–11.3 mm (n = 6). Hindwing slightly wider than in male. Otherwise, similar to male.
Male genitalia (Figs. 29–42). Capsule about 730 μm long. Uncus with two long lateral lobes. Socii membranous, sometimes indistinctive. Tegumen relatively long (150–170 μm), with long lateral arms. Valva about 435 μm long, wide (Fig. 41), in ventral view, with a distinctive median excavation (Figs. 29, 36, 37, 42). Transtilla with medium-long sublateral processes and a slender, slightly curved transverse bar (Fig. 36). Vinculum with a distinctive, about 150 μm long process (Figs. 36, 39). Anellus distinctive, membranous, with numerous tiny spines (Fig. 29). Phallus 560–680 μm long (Figs. 29, 35), very slender, with a strongly extended tulip-shaped apex and two long lateral bands of spines (Figs. 30–34).
Female genitalia (Fig. 43–48). Total length about 1245 μm. Ovipositor lobes very large (Fig. 45), densely clothed with short, modified, peg-like setae. Second pair of lobes weakly developed, rather indistinctive (Figs. 46, 47). Anterior apophyses significantly shorter than posterior apophyses; the latter sometimes slightly widened distally. Prela comprised of three pairs of rod-like projections. Vestibulum without antrum, slightly thickened laterally. Ductus bursae slender, without spines. Corpus bursae oval, membranous, without spines or signa. Ductus spermathecae wide and folded in proximal part (Fig. 43), with 8–10 large coils distally (Fig. 44).
Bionomics (Figs. 62–79). Host plants are various Symplocos spp., including S. sumuntia Buch. -Ham. ex D. Don (Fig. 63), S. poilanei Guill. (Fig. 64), and S. glauca (Thunb.) Koidz. (Figs. 65, 66) (Symplocaceae). The larvae mine leaves in February. The leaf mines vary from distinctly reddish (Figs. 67–73) to white (Figs. 74–79). The shape of the leaf mines changes in the course of their development (Figs. 74, 76). Adults fly in March. Pupation in silken nidus, inside of the leaf mine.
Distribution. Coptotriche asiana is known from three sites close to Sa Pa, Lao Cai Province, northern Vietnam, at elevation of about 1900–2000 m (Fig. 62).
Etymology. The new species is named after the continent where it occurs.
description: Published as part of Xu, Jiasheng, Dai, Xiaohua, Rimšaitė, Jolanta, Diškus, Arūnas & Stonis, Jonas R., 2021, Discovery of the new Coptotriche species in China revealed two novel host-plant families and host-plant orders for Tischeriidae, a family of stenophagous, leafmining lepidopterans, pp. 76-96 in Zootaxa 5071 (1) on pages 82-93, DOI: 10.11646/zootaxa.5071.1.4, http://zenodo.org/record/5723293