Coptotriche asiana Diškus & Stonis, 2021

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, Zootaxa 5071 (1), pp. 76-96 : 82-93

publication ID	https://doi.org/ 10.11646/zootaxa.5071.1.4
publication LSID	lsid:zoobank.org:pub:4E63E1FA-94D5-423E-BBAA-401F39C7452A
DOI	https://doi.org/10.5281/zenodo.5725458
persistent identifier	https://treatment.plazi.org/id/D53FA683-FDEA-4710-97DB-73B79D02E66E
taxon LSID	lsid:zoobank.org:act:D53FA683-FDEA-4710-97DB-73B79D02E66E
treatment provided by	Plazi
scientific name	Coptotriche asiana Diškus & Stonis
status	sp. nov.

Treatment

Coptotriche asiana Diškus & Stonis View in CoL , sp. nov.

http://zoobank.org/NomenclaturalActs/ D53FA683-FDEA-4710-97DB-73B79D02E66E

( Figs. 7–11 View FIGURES 5–11 , 29–48 View FIGURES 29–36 View FIGURES 37–42 View FIGURES 43–48 , 62–79 View FIGURES 62–66 View FIGURES 67–73 View FIGURES 74–79 )

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). GoogleMaps Paratypes (13 ♂, 5 ♀): 6 ♂, 2 ♀, same label data as holotype, genitalia slides nos. AD 1043♂ (from adult in pupal exuviae), AD 1041♀ ( ZIN); GoogleMaps 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); GoogleMaps 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). GoogleMaps

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 View FIGURES 29–36 , 39 View FIGURES 37–42 ), strongly excavated valva ( Figs. 36 View FIGURES 29–36 , 37, 42 View FIGURES 37–42 ), and a long, anteriorly distinctly thickened tegumen ( Fig. 38 View FIGURES 37–42 ) 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 View FIGURES 5–11 ). 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 View FIGURES 5–11 ); 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 View FIGURES 5–11 ); 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 View FIGURES 29–36 View FIGURES 37–42 ). 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 View FIGURES 37–42 ), in ventral view, with a distinctive median excavation ( Figs. 29, 36 View FIGURES 29–36 , 37, 42 View FIGURES 37–42 ). Transtilla with medium-long sublateral processes and a slender, slightly curved transverse bar ( Fig. 36 View FIGURES 29–36 ). Vinculum with a distinctive, about 150 μm long process ( Figs. 36 View FIGURES 29–36 , 39 View FIGURES 37–42 ). Anellus distinctive, membranous, with numerous tiny spines ( Fig. 29 View FIGURES 29–36 ). Phallus 560–680 μm long ( Figs. 29, 35 View FIGURES 29–36 ), very slender, with a strongly extended tulip-shaped apex and two long lateral bands of spines ( Figs. 30–34 View FIGURES 29–36 ).

Female genitalia ( Fig. 43–48 View FIGURES 43–48 ). Total length about 1245 μm. Ovipositor lobes very large ( Fig. 45 View FIGURES 43–48 ), densely clothed with short, modified, peg-like setae. Second pair of lobes weakly developed, rather indistinctive ( Figs. 46, 47 View FIGURES 43–48 ). 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 View FIGURES 43–48 ), with 8–10 large coils distally ( Fig. 44 View FIGURES 43–48 ).

Bionomics ( Figs. 62–79 View FIGURES 62–66 View FIGURES 67–73 View FIGURES 74–79 ). Host plants are various Symplocos spp. , including S. sumuntia Buch. -Ham. ex D. Don ( Fig. 63 View FIGURES 62–66 ), S. poilanei Guill. ( Fig. 64 View FIGURES 62–66 ), and S. glauca (Thunb.) Koidz. ( Figs. 65, 66 View FIGURES 62–66 ) ( Symplocaceae ). The larvae mine leaves in February. The leaf mines vary from distinctly reddish ( Figs. 67–73 View FIGURES 67–73 ) to white ( Figs. 74–79 View FIGURES 74–79 ). The shape of the leaf mines changes in the course of their development ( Figs. 74, 76 View FIGURES 74–79 ). 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 View FIGURES 62–66 ).

Etymology. The new species is named after the continent where it occurs.

ZIN	Russian Academy of Sciences, Zoological Institute, Zoological Museum
GNU	Guangxi Normal University
NRC	Division of Biological Sciences, National Research Council of Canada