Euchalcia matovi Volynkin & Titov

Volynkin, Anton V., Titov, Sergey V. & Ivanova, Maria S., 2014, A new species of Euchalcia Hübner, [1821] from Kazakhstan (Lepidoptera, Noctuidae), Zootaxa 3784 (4), pp. 493-497 : 493-497

publication ID

https://doi.org/ 10.11646/zootaxa.3784.4.8

publication LSID

lsid:zoobank.org:pub:18F7F43B-1731-414D-A42A-122AE8E8F4D1

DOI

https://doi.org/10.5281/zenodo.6142649

persistent identifier

https://treatment.plazi.org/id/03BF4A6D-4559-3D39-FF40-FA85AE43FBBD

treatment provided by

Plazi

scientific name

Euchalcia matovi Volynkin & Titov
status

sp. nov.

Euchalcia matovi Volynkin & Titov , sp. n.

( Figs 1–5 View FIGURES 1 – 10 , 11, 12 View FIGURES 11 – 16 , 17, 18, 22 View FIGURES 17 – 23 )

Type material. Holotype: male, 09.vi.2013, E Kazakhstan, East Kazakhstan area, Urdzhar district, Tarbagatai Ridge, 6.7 km N of Kyzymbet (Alekseevka) village, mesophilous shrubby slopes, 1300 m. 47°18.365’ N, 81°32.152’ E, Volynkin A.V., Titov S.V. & Černila M. leg. Slide AV0865 Volynkin (Coll. ZISP). Paratypes: 22 males, 15 females, with the same labels as holotype, slides AV0853, AV0863, AV0864, AV0870, AV0871, AV0872, AV0873, AV0874 Volynkin (males), AV0866, AV0867, AV1177, AV1178 Volynkin (females) (Colls ZISP, AVB, STP, MČK); 2 females, 9.vii. [19]67, Kazakhstan, Dzhungarsky Alatau, I. Kostin [leg.] / Euchalcia inconspicua, Zolotarenko det., slides AV1177, AV1178 Volynkin (females) (Coll. SZMN).

Diagnosis. The new species is the third and the smallest member of the E. inconspicua species-complex. Externally E. matovi ( Figs 1–5 View FIGURES 1 – 10 ) is close to E. anthea ( Figs 9, 10 View FIGURES 1 – 10 ), but differs from it by smaller size (wingspan of E. anthea 31–36 mm), somewhat paler, more brilliant forewing colouration and less contrast pattern; from E. inconspicua ( Figs 7, 8 View FIGURES 1 – 10 ) differs by smaller size (wingspan of E. inconspicua 32–37 mm), broader forewing in females, with less acutely pointed apex of forewing in both sexes, much paler forewing colouration with paler medial field and less contrast pattern. E. matovi is also externally similar to E. shugnana (Sheljuzhko, 1929) ( Fig. 6 View FIGURES 1 – 10 ), but differs from it by somewhat less acutely pointed apex of forewing in both sexes, broader forewing in females, more brilliant forewing colouration. The male genitalia of the new species ( Figs 11, 12 View FIGURES 11 – 16 ) are close to those of E. inconspicua ( Figs 13, 14 View FIGURES 11 – 16 ). The genital capsule of E. matovi differs by longer and narrower uncus, narrower and distally more angled valva with larger ventro-medial triangular lobes; E. matovi has a larger aedeagus in comparison to the genital capsule of E. inconspicua , the vesica of E. matovi is longer, and subterminal

cornuti are somewhat longer and more to robust. From E. anthea ( Fig. 15 View FIGURES 11 – 16 ) the male genitalia of E. matovi differ by medially broader valva with larger ventro-medial triangular lobes, somewhat longer aedeagus in comparison with the genital capsule, shorter and broader basal tube of vesica, and longer and stronger subterminal cornuti; from E. shugnana ( Fig. 16 View FIGURES 11 – 16 ) the male genitalia differ by longer uncus, longer harpe and the vesica structure: in E. matovi the basal tube is much longer, subterminal cornuti longer and stronger. The female genitalia of E. matovi ( Figs 17, 18 View FIGURES 17 – 23 ) differ from those of E. inconspicua ( Fig. 19 View FIGURES 17 – 23 ) by longer ductus bursae with much stronger sclerotised bulbous anterior part; from E. anthea ( Fig. 20 View FIGURES 17 – 23 ) differ by shorter and not S-shaped ductus bursae and somewhat stronger sclerotised bulbous anterior part; from E. shugnana ( Fig. 21 View FIGURES 17 – 23 ) differ by much larger, more rounded anterior part of ductus bursae, larger appendix bursae, longer corpus bursae.

Description. Adult ( Figs 1–5 View FIGURES 1 – 10 , 22 View FIGURES 17 – 23 ). Wingspan 28–31 mm, length of forewing 12–14 mm. Antennae filiform. Head, thorax and abdomen ochreous; tegulae and patagia golden ochreous; Forewing broad, with pointed apex. Ground colour of forewing ochreous with metallic golden sheen; basal line thin, brown, wavy, indistinct; antemedial and postmedial lines thin, dark golden brown; antemedial line bent at A1, postmedial line smooth curved; suffusion of the medial area varies from golden ochreous to golden brown; submarginal line thin, smooth curved, dark golden brown, with conspicuous dark golden brown shadow at inner margin; terminal line thin, dark brown; cilia ochreous or brown; orbicular, reniform and subcellular stigma conspicuous, with thin dark brown borders. Hindwing ochreous or ochreous brown; terminal band wide, dark, fuzzy; medial band thin, slightly wavy, dark brown; discal spot thin, brown, indistinct. Male genitalia ( Figs 11, 12 View FIGURES 11 – 16 ). Uncus narrow, long, curved, apically pointed; tegumen broad, moderately long; juxta broad, shield-like, with long conical apical process; vinculum long, V-shaped; valva moderately broad, distally narrowed, angled, with well developed ventro-medial triangular lobes; sacculus relatively small, clavus small, short, triangular; harpe long, thin; aedeagus large, moderately broad; vesica tubular, consists of broad tubular basal part and sphaerical subterminal bulb with three-six large subterminal cornuti and one terminal cornutus. Female genitalia ( Figs 17, 18 View FIGURES 17 – 23 ). Ovipositor short, conical. Apophyses posteriores and anteriores long, thin. Ostium bursae membranous; ductus bursae moderately long, tubular, rugose, with strongly sclerotised bulbous proximal plate at junction to corpus bursae; appendix bursae small, elliptical, membranous; ductus bursae membranous, sack-like, moderately long.

Distribution and bionomics. The new species is known from the south-west part of Tarbagatai Ridge in East Kazakhstan and the Dzhungarsky Alatau Mts. in South-East Kazakhstan. At the type locality, E. matovi inhabits mesophilous slopes with Lonicera and Rosa shrubs ( Fig. 23 View FIGURES 17 – 23 ).

Etymology. The species name is dedicated to Dr. Alexey Matov (ZISP), an expert on Asian Noctuoidea.

ZISP

Zoological Institute, Russian Academy of Sciences

SZMN

Siberian Zoological Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Noctuidae

Genus

Euchalcia

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