Parastenolechia collucata ( Omelko, 1988 )

Liu, Linjie & Li, Houhun, 2016, Taxonomic review of the genus Parastenolechia Kanazawa (Lepidoptera, Gelechiidae, Litini) from Mainland China, with descriptions of six new species, Zootaxa 4178 (1) : -

Parastenolechia collucata ( Omelko, 1988)

( Figs. 8 , 18 , 28 , 35 )

Laris collucata Omelko, 1988: 155 . Type locality: Russia . Type depository: Zoological Institute , Russian Academy of Sciences, St. Petersburg, Russia .

Parastenolechia collucata (Omelko) : Lee & Brown, 2008: 52.

Material examined. CHINA: Shanxi Province: 3Ƌ, Mt. Mianshan, Jiexiu , 1370 m, 18.vii.2014, leg. Tengteng Liu, Meiqing Yang and Sihan Lu, genitalia slide No. LLJ15044 ; Hubei Province: 2♀, Taohuachong , Yingshan County, 635 m, 23.vi.2014, leg. Wei Guan and Meiqing Yang, genitalia slide No. LLJ15048 .

Redescription. Adult ( Fig. 8 ). Wingspan 11.5–13.0 mm. Head white. Labial palpus white; second segment with basal half brown on outer surface; third segment brown at basal 1/3 and 2/3. Antenna with scape white; flagellum alternately black and white. Thorax grayish white, mixed with brown or ochreous brown scales; tegula grayish white, ochreous brown at base. Forewing ground color white, suffused with brown and dark brown scales, tinged with black scales, apex black; markings black, overlaid with raised scales: costa with spot at base, at 2/5 and 2/3 respectively; discal, discocellular and plical spots overlaid with raised scales, fold with raised white scales at 2/3; tornus with an ovate spot; cilia white, tinged with black along termen, grayish at tornus. Hindwing and cilia grayish brown. Foreleg brown, tarsus black, each tarsomere white apically; midleg brown, tibia white; hindleg pale yellowish white.

Male genitalia ( Fig. 18 ). Uncus with basal 2/3 rectangular, distal 1/3 triangular, posterior margin rounded, densely setose. Gnathos with anteromedian process small. Tegumen furcate from anterior 2/3, having a large membranous ventral process. Glandiductor symmetrical, about same length as tegumen, dilated triangularly at base, slender distally, curved. Valva subrectangular; outer lobe clubbed, setose, exceeding tip of glandiductor; inner lobe thicker, triangular, tapered to apex. Juxta about 1/2 length of outer lobe of valva, acute at apex. Vinculum inverted triangular; saccus concave at middle on anterior margin. Aedeagus about 1/2 length of tegumen-uncus complex, slender, curved, dilated basally, distal 1/4 truncate.

Female genitalia ( Figs. 28 , 35 ). Apophyses anteriores about 2/3 length of apophyses posteriores. Ostium bursae with lateral lobes small, rounded. Ductus bursae about same as length as corpus bursae, with a triangular sclerite posteriorly. Corpus bursae ovate, with sparse granules on inner surface; signum subtriangular, spines anterolateral.

Diagnosis. Parastenolechia collucata differs from its congeners in the male genitalia by the tegumen having a large membranous ventral process, and in the female genitalia by the extremely small rounded lateral lobes of the ostium bursae.

Distribution. China (Gansu, Hubei, Shaanxi, Shanxi), North Korea, Russia.

Figures

FIGURES 6 – 11. Adults of Parastenolechia spp. 6, P. albicapitella, male; 7, P. argobathra, male; 8, P. collucata, male; 9, P. arciformis sp. nov., holotype, male; 10, P. papillaris sp. nov., paratype, female; 11, P. claustrifera Meyrick, female (Scale bars = 2.0 mm).

FIGURES 16 – 20. Male genitalia of Parastenolechia spp. 16, P. albicapitella, slide No. LLJ 14110; 17, P. argobathra, slide No. LLJ 15045; 18, P. collucata, slide No. LLJ 15044; 19, P. arciformis sp. nov., paratype, slide No. LLJ 15063; 20, P. papillaris sp. nov., paratype, slide No. LLJ 15087 (Scale bars = 0.3 mm).

FIGURES 26 – 32. Female genitalia of Parastenolechia spp. 26, P. albicapitella, slide No. LLJ 14113; 27, P. argobathra, slide No. LLJ 15047; 28, P. collucata, slide No. LLJ 15048; 29, P. arciformis sp. nov., paratype, slide No. LLJ 15089; 30, P. papillaris sp. nov., paratype, slide No. LLJ 15064; 31, P. claustrifera Meyrick, slide No. LLJ 15050; 32, P. medispina sp. nov., paratype, slide No. LLJ 15111 (Scale bars = 0.3 mm).

FIGURES 33 – 40. Enlarged lateral lobes of female ostium bursae of Parastenolechia spp. 33, P. albicapitella, slide No. LLJ 14113; 34, P. argobathra, slide No. LLJ 15047; 35, P. collucata, slide No. LLJ 15048; 36, P. arciformis sp. nov., paratype, slide No. LLJ 15089; 37, P. papillaris sp. nov., paratype, slide No. LLJ 15064; 38, P. claustrifera Meyrick, slide No. LLJ 15050; 39, P. trapezia sp. nov., paratype, slide No. LLJ 15049; 40, P. medispina sp. nov., paratype, slide No. LLJ 15111 (Scale bars = 0.1 mm).