Dyspessa kashgarica, Yakovlev, Roman V., Saldaitis, Aidas & Pekarsky, Oleg, 2016

Yakovlev, Roman V., Saldaitis, Aidas & Pekarsky, Oleg, 2016, A new species of Dyspessa Hübner, (Lepidoptera, Cossidae) from Western China, with catalogue of Chinese species of the genus, Zootaxa 4107 (1), pp. 85-88 : 85-88

Dyspessa kashgarica sp. n.

( Figs 1−2 , 7, 8)

Type material. Holotype: male ( Fig. 1 ), China, Xinjiang, SW from Kashi, Keng Tau Mts, Oytag loc., N38°54' 383'', E075°12' 747'', h- 2750 m, 1.vi.2013, leg. Floriani, (slide OP 2749m) (coll. ASV/ WIGJ). Paratypes: 2 males ( Fig. 2 ), with the same data as the holotype, 6 males ( Fig. 2 ), China, Xinjiang, SW from Kashi, Keng-Tau Mts, Oytag loc., N 38°54’ 363”, E 75°13’ 788”, h- 2650 m, 4–6.vi.2013, leg. Floriani, (slide OP 2750m) in the AFM, ASV, OP, RYB and WIGJ collections.

Diagnosis. Externally D. kashgarica sp. n. differs from all Central Asiatic congeners by its larger size and a characteristic light-yellow pattern of forewing. In male genitalia, it differs from D. tristis ( Figs 5, 6 , 10 ) and D. saissanica ( Figs 4 , 11 ) by the narrower upper part of the valva and larger, dent-like costal prominence; from D. ruekbeili ( Figs 3 , 9 ) D. kashgarica differs by its significantly more massive sacculus, as well as the wider and less acute lateral transtilla processes.

Description. Wingspan 23–25 mm (holotype 23 mm), length of forewing 11–12 mm (holotype 11 mm) ( Figs 1, 2 ). Thorax and abdomen densely covered with light-yellow hair-like scales. Antenna bipectinate along the full length, with processes twice as long as diameter of flagellum. Forewing narrow, elongated; costa heavily sclerotized, concave subapically; apex rounded; termen slightly oblique; dorsum concave; ground colour grey with light yellow patches and streaks in medial and post medial areas; subbasal line present as dark patch; antemedial line disconnected, present as a dark dot on costa; medial line visible as dark patches near veins; postmedial line wide, incised with darkened sectors near veins; terminal line grey; subapical patch presented; fringe yellowish with scattered grey scales. Hindwing uniformly light grey with group of dark scales in the centre on CuA and CuA1 junction, fringe yellowish.

Male genitalia ( Fig. 8 ). Symmetrical, uncus wide, tapering; tegumen strong; gnathos arms long, narrow, somewhat narrowing at base; valva tapering, wide at base with heavily sclerotized proximal part and weakly sclerotized distal part, costa curved in the middle forming large sclerotized dent-like prominence bordering upper part of valva; paired lateral transtilla processes near triangle with acute tips; juxta small, anterior ridge concave, lateral lobes of juxta cylindrical, apically pointed; saccus rounded; phallus narrow, curved at the ends, caecum broadened, bulbus ejaculatorius wide, vesica membranous. Female unknown.

Etymology. The name is toponymical to Kashgar (Kashi), Xinjiang, China.

Bionomics and distribution. Nine males were collected at ultraviolet light in the beginning of June 2013 in west China's Xinjiang Province, in a remote area at the northwestern edge of the Kunlun Shan Mountains, Keng Tau Mts (Fig. 7). The new species was collected at altitudes ranging from 2600 to 2750 metres in particularly dry mountains slopes covered by sparse bushes and Juniperus .

Figures

FIGURES 1 − 6. Dyspessa, ssp. adults, males. 1. D. kashgarica sp. n., holotype, China, Xinjiang, SW from Kashi, Keng Tau Mts (ASV / WIGJ); 2. D. kashgarica sp. n., paratype, China, Xinjiang, SW from Kashi, Keng Tau Mts (OP); 3. D. ruekbeili, holotype, China, Altun Shan Mountains (MNHU); 4. D. saissanica, [China, Xinjiang], Chamil-Hami (MNHU); 5. D. tristis, [China, Xinjiang], Mongolian Altai (ZISP); 6. D. tristis, Kazakhstan, Almaty Prov., Ili river [valley] 4 km. E. of Akzhar (MWM) 7. Type locality of D. kashgarica, China, Xinjiang, SW from Kashi, Keng Tau Mts, Oytag loc., N 38 ° 54 ' 383 '', E 075 ° 12 ' 747 '' (photo by A. Saldaitis).

FIGURES 8 – 11. Dyspessa ssp. male genitalia. 8. D. kashgarica sp. n., holotype, China, Xinjiang, prep. OP 2749 m (ASV / WIGJ); 9. D. ruekbeili, holotype, Altun Shan, prep. RYB (MNHU); 10. D. tristis, Kazakhstan, Almaty, prep. MWM 26.772 (MWM); 11. D. saissanica, holotype, E. Kazakhstan, Kurchum distr., Bukombaj Mts, prep. RYB (ZISP).