Perigrapha (Perigrapha) yasawii Volynkin, Titov & Knyazev

Volynkin, Anton V., Titov, Sergey V. & Knyazev, Svyatoslav A., 2014, A new Perigrapha Lederer, 1857 from South Kazakhstan (Lepidoptera, Noctuidae), Zootaxa 3856 (2), pp. 292-296 : 292-296

Perigrapha (Perigrapha) yasawii Volynkin, Titov & Knyazev , sp. n.

( Figs 1–3 , 11, 12 )

Type material. Holotype: male, 14.iv. 2014, S Kazakhstan, South Kazakhstan Region, 39 km WSW of Turkestan city, Syrdarya river valley, h= 180 m, N43°10.006’, E 67°50.389’, at light. Volynkin A.V., Titov S.V. & Knyazev S.A. leg. Slide AV1242 Volynkin (Coll. Zoological Institute, Russian Academy of Sciences, St. Petersburg, Russia [ ZISP]).

Paratypes: 26 males, with the same data as holotype (Colls A. Volynkin, Barnaul, Russia [AVB]; S. Knyazev, Omsk, Russia [SKO]; S. Titov, Pavlodar, Kazakhstan [STP]; ZISP); 1 male, Perovsk [S Kazakhstan, Kyzyl-Orda Region, vicinity of Kyzyl-Orda city], Syr-Darya reg., 2.iv.1909, E. Miller [leg.] (Coll. ZISP). Slides AV1230, AV1243 Volynkin (males).

Diagnosis. The new species belongs to P. circumducta complex of the P. i-cinctum ([Denis & Schiffermüller], 1775) species-group including P. sechuana G. Ronkay, L. Ronkay & Hacker, 2010 , P. circumducta circumducta (Lederer, 1855) and P. circumducta pallescens (Draudt 1934) ( Hreblay 1996; Ronkay et al. 2001; Ronkay et al.

2010). P. yasawii sp. n. ( Figs 1–3 ) differs externally from P. circumducta circumducta ( Figs 4–6 ) by its somewhat smaller size (wingspan of P. circumducta circumducta 42–53 mm), broader pectination of male antennae, more concolorous brownish-grey ground colour of forewings (in P. c. circumducta ground colour varies from reddishbrown to blackish-brown), pale subbasal area, pale subterminal area with narrower dark field outwards the postmeidal line, somewhat smaller orbicular stigma, more rounded reniform stigma, much narrower suborbicular patch and more greyish hindwings; from P. circumducta pallescens ( Figs 7, 8 ) by its smaller size, broader pectination of male antennae, brownish-grey ground colour of forewings, more concolorous subterminal area with narrower dark field outwards the postmeidal line, more rounded reniform stigma, much narrower suborbicular patch and more greyish hindwings; from P. sechuana ( Figs 9, 10 ) by its smaller size, narrower forewings, concolorous brownish-grey ground colour of forewings (in P. sechuana ground colour reddish-brown), paler subbasal area, pale subterminal area with narrower dark field outwards the postmeidal line, somewhat smaller orbicular stigma, more rounded reniform stigma, much narrower suborbicular patch and less unicolorous, more greyish hindwings with paler basal area. The male genitalia of P. yasawii sp. n. ( Figs 11, 12 ) differ from those of P. circumducta ( Figs 13 ) by the proximally broader, almost quadrangular uncus, more quadrangular juxta, broader clasper with shorter harpe and broader proximal part of ampulla; from P. sechuana ( Fig. 14 ) by proximally broader, almost quadrangular uncus, broader clasper with shorter harpe, less asymmetrical and apically more dilated distal parts of valvae, longer aedeagus and much longer, less dorsally recurved vesica.

Description. Adult ( Figs 1–3 ). Male. Wingspan 37–43 mm. Antennae bipectinate, with long branches. Head, thorax and abdomen brownish-grey. Ground colour of forewing pale brownish-grey, medial area dark, greyishbrown, paler near the costal margin; antemedial and postmedial lines thin, dark grey; antemedial line almost straight, slightly curved near the costal margin; postmedial line almost straight, only arcuate around the cell; subterminal line indistinct; terminal area darker than subterminal; terminal line blackish, divided into short spots; orbicular and reniform stigmata and suborbicular patch being connected with reniform stigma with merged edges, pale greyish-ochreous, bordered with blackish; cilia grey. Hindwing greyish-brown; discal spot and medial line indistinct, dark; cilia dark grey. Female unknown. Male genitalia ( Figs 11, 12 ). Uncus short, almost quadrangular, apically slightly rounded; tegumen short, weak; penicular lobes weak, narrow; juxta long, almost quadrangular; vinculum short, V-shaped; valva long, relatively narrow; cuculli long, straight, narrow, without pollex-like extensions, asymmetrical; distal part of left cucullus longer, apically narrower than that of right cucullus; ampulla long, slender, moderately curved, apically pointed; clasper short, distally strongly broadened, harpe very short; aedeagus very long, curved; vesica long, twisted, with subconical medial diverticulum with very small field of weak and short spinules, and large terminal field of spinules on broad diverticulum.

Distribution and bionomics. The new species is known from two localities in South Kazakhstan. P. y as a w i i sp. n. inhabits dry shrubby river valleys ( Fig. 15 ).

Etymology. The species name is dedicated to Khodja Ahmed Yasawi, a Turkic poet and Sufi, whose mausoleum is in Turkestan city, less than 40 km from the type locality.

Figures

FIGURE 15. South Kazakhstan, 39 km WSW of Turkestan city, Syrdarya river valley, N 43 ° 10.006 ’, E 67 ° 50.389 ’. Type locality of P. yasawii.

FIGURES 1 – 10. Perigrapha spp., adults. 1, P. y as a wi i, holotype male, S Kazakhstan; 2, P. y as awii, paratype male, S Kazakhstan; 3, P. yasawii, paratype male, S Kazakhstan; 4, P. circumducta circumducta, male, Russia, Altai Mts; 5, P. c. circumducta female, SE Kazakhstan, Ili river (AVB); 6, P. c. circumducta male, Mongolia, Central aimak; 7, P. c. pallescens, holotype male, China, Xinjiang (photo by G. & L. Ronkay); 8, P. c. pallescens, female, China, Xinjiang (photo by G. & L. Ronkay); 9, P. sechuana, holotype male, China, Sichuan (photo by G. & L. Ronkay); 10, P. sechuana, paratype male, China, Sichuan (photo by G. & L. Ronkay).

FIGURES 11 – 14. Perigrapha spp., male genitalia. 11, P. yas awii, holotype, S Kazakhstan, slide AV 1242 Volynkin; 12, P. yasawii, paratype, S Kazakhstan, slide AV 1230 Volynkin; 13, P. circumducta, Altai Mts, slide AV 0267 Volynkin; 14, P. sechuana, holotype, China, Sichuan, slide RL 8655 Ronkay (photo by G. & L. Ronkay).