Cochylimorpha flavescens, Šumpich & Budashkin, 2021

Šumpich, Jan & Budashkin, Yuriy, 2021, A new Cochylimorpha Razowski, 1959 (Lepidoptera: Tortricidae) from Altai and Tuva, Russia, Zootaxa 5057 (1), pp. 140-144 : 141-143

Cochylimorpha flavescens sp. n.

( Figs 1–9 )

Type material: Holotype, ♂, Russia, Altai Republic, Kosh-Agach Distr., Tashanta env. (8 km N), 49°44’11’’N, 89°20’02’’E, bellow, “11 station”, rocky steppe / montains meadows, 2280 m, 1.vii.2015 (gen. prep. J. Šumpich 19907, Barcode NMPC-Lep-0270) (J. Šumpich) ( NMPC) . Paratypes: 1 ♂, with the same label as holotype; 3 ♂, Russia, Altai Republic, Kosh-Agach Distr., Kurai env. (15 km SW), Dzhangyscol lake , 50°10’49’’N, 87°44’19’’E, steppe, 1830 m, 29 –30.vi.2016 (J. Šumpich) ; 2 ♂, Russia, Tuva, 75 km NE of Kosh-Agach, Ak-Chol lake , 50°16’43’’N, 89°36’44’’E, rocky steppe, meadows, 2230 m, 2–3.vii.2015 (J. Šumpich) (all NMPC) .

Diagnosis. Externally, Cochylimorpha flavescens sp. nov. differs well from all known Palaearctic species of this genus due to the peculiar forewing pattern, apart from C. obliquana . However, C. flavescens differs from C. obliquana by larger wingspan and nearly uniformly yellowish coloration of the forewings. The male genitalia are unmistakable within this species group, mainly due to the unique shape of the valvae, which is very similar to that of C. razowskiana Kuznetzov, 2006 . However, C. razowskiana has a square transtilla and the aedeagus is with two cornuti and without lateral arm. For more details see Razowski (2009).

Description. Adult ( Figs 1–5 ). Male. Wingspan 21.5– 23 mm. Head with moderately protruding pale yellow scales, labial palpi porrect with dense long scales of same color, straight, scapus covered with brownish scales, rest antennomeres with alternating light yellow and grayish brown rings, densely ciliated beneath. Thorax dorsally, including tegulae, covered with light yellow scales, without pattern. Forewing very narrow, with straight costal and strongly oblique tornal margin, dorsal margin slightly convex. Upperside forewing ground color light yellow, with dark pattern consisting of: narrow oblique long brown dorsal spot with slightly sinuous inner and outer margins starting in front of middle of dorsal margin and reaching costal border of median cell; much shorter oblique spot of same color extending from dorsal border of apex of median cell to tornal angle, strongly narrowing; five blurred brown spots along costal edge, largest of which more or less rectangular and located above dorsal spot and almost connected with it; smaller, narrower spot with rounded dorsal border and narrowing apex at base of wing; rod-like third spot of even width approximately 1 mm long extending along costal margin, starting distally from apex of median cell; remaining two smallest more or less rounded triangular spots on costal edge of the wing at the confluence of R 3 and R 4, brown lines emerging from these spots follow these veins for more than 1 mm each, further blurring and terminating. Cilia light brown, some scales with yellowish fragments at base, ciliar line darker, dark brown. Hindwings gray, with darker veins and wide dark gray suffusion along the RR and M 1 trunks and, fragmentarily, above. Cilia yellowish-gray in upper part of wing, at apex and along outer edge of wing almost to the confluence of M 3 vein, and further downward becomes lighter, dirty yellowish-white. Fringe line darker, about same color as veins. Female unknown.

Male genitalia ( Figs 6–9 ). Uncus absent, tegumen comparatively wide, with shallow wide notch at apex. Socii rather wide, relatively weakly sclerotized, curved almost at right angle in, slightly narrowed terminally and with dense relatively short setae. Median process of transtilla strongly sclerotized, long, apically rounded formation with two small conical spines in apical part. Valva wide in basal half, distally strongly narrowed and bending dorsally at obtuse angle. Top of valva rounded. Aedeagus smooth, curved ventrally, slender and, with semi-oval coecum. Lateral arm with several spines in apical half, curved ventrally. Cornuti absent.

Female. Unknown.

Molecular data. BIN BOLD: AEA2526 (n = 1). The nearest neighbor is C. jucundana with 5.29% p-distance. However, at the time of a preparation of this paper, some related species have not yet been barcoded, including C. obliquana .

Biology. Host plant unknown. Adults were observed only at the very end of June and in the beginning of July at altitudes of 1800–2300 m above sea level in rocky steppes and open xerothermic habitats ( Figs 10–11 ).

Distribution. Russia: Altai, Tuva.

Etymology. The species name refers to the yellowish color of the forewings.

Figures

FIGURES 1–5. Cochylimorpha flavescens sp. n. 1–2. Adults, males. 1. Holotype, Altai, Tashanta env. 2. Paratype, Tuva, Ak- Chol lake env. 3–5. Head. 3–4. Altai, Dzhangyskol lake area 5. Tuva, Ak-Chol lake area.

FIGURES 6–9. Cochylimorpha flavescens sp. n., male genitalia, holotype, gen. prep. 19907 J. Šumpich. 6. General view. 7. Detail of apex of transtilla. 8. Detail of juxta. 9. Aedeagus: a—right view, b—left view.

FIGURES 10–11. Habitats of Cochylimorpha flavescens sp. n. 10. Altai, Tashanta area, bellow 11. station. 11. Tuva, Ak-Chol lake.