Scrobipalpa fusca, Bidzilya, Oleksiy & Li, Houhun, 2010

Bidzilya, Oleksiy & Li, Houhun, 2010, The genus Scrobipalpa Janse (Lepidoptera, Gelechiidae) in China, with descriptions of 13 new species, Zootaxa 2513, pp. 1-26 : 17

Scrobipalpa fusca sp. n.

( Figs. 1 , 17 , 41 )

Type material. Holotype, 3, China: Erdaoqiao, Ejin Qi (41°58' N, 101°04' E), Inner Mongolia, 927 m, 17.vii.2006, leg. Xinpu Wang and Xiangfeng Shi. Paratypes: 2 3, 3 Ƥ, same data as holotype, genitalia slide nos. 199/07, 222/07; 2 Ƥ, Jinghe County (44°39' N, 82°56' E), Xinjiang Uigur Autonomous Region, 20, 24.vii.1994, leg. Duoliken Baishangbayi, genitalia slide no. L06059; Uzbekistan: 1 Ƥ, Ajakguzhumdy, 40 km O Dzhingildy, Kyzylkum, 7.vi. [1]965, leg. Zabello ( ZIN); 1 Ƥ, same data except dated 21.v. [1]975, leg. Falkovitsh ( ZIN); 1 Ƥ, same data except dated 10.vi. [1]965, leg. Falkovitsh, genitalia slide no. 1/07 ( ZIN); Turkmenistan: 2 3, 2 Ƥ, Kakinskiy et., st. Baba-Durmaz, na svet, 30.04.[19]93, leg. Buldakova ( ZIN); Kazakhstan: 1 Ƥ, 150 km NE Alma-Ata, right bank Ili River, Urochishche Mynbulak, 21.v.1990, leg. Falkovitsh ( ZIN).

Description. Adult ( Fig. 1 ): Wingspan 9.5–10.5 mm. Head, thorax and tegula covered with grey browntipped scales. Frons light grey. Labial palpus recurved, ligth grey; segment 2 with rare brown scales on outer surface; segment 3 pointed, nearly twice width of segment 3. Antennal segments with alternated grey and brown rings. Forewing covered with light grey, brown or ochreous-tipped scales, sparsely mottled dark; cilia light grey. Hindwing and cilia grey.

Male genitalia ( Fig. 17 ): Uncus relatively long, nearly parallel-sided, rounded apically. Gnathos weakly curved. Tegumen relatively broad. Valva dilated distally, extending to top of uncus. Sacculus about one-third length of valva, comparatively narrow, straight with small pointed apex. Processes on posterior margin of vinculum about same length as sacculus, but slightly broader, weakly dilated and rounded apically, outside with small pointed tip; medial excision broad, rounded. Saccus short and narrow. Basal half of aedeagus bulbous, sub-oval; apex with small cornutus.

Female genitalia ( Fig. 41 ): Papilla analis sub-oval. Segment VIII nearly as broad as long; lobes of vaginal plates broadly separated, covered especially by foamy sculpture medially; postvaginal plates broad, rounded apically, with deep, narrow anterior incision, covered in proximal half with foamy sculpture, not protruding over anterior margin of segment VIII. Apophysis anterioris distinctly shorter than segment VIII. Ductus bursae broad and moderately short, not separated distinctly from corpus bursae. Corpus bursae prolonged, slightly shorter than length of ductus bursae; signum strongly curved at one-third, placed at entrance of bursae copulatrix.

Diagnosis. The new species may be easily recognizable externally by the uniformly brown small-sized forewing. The male genitalia resemble those of S. candicans Povolný , but differ in having apically broader, not curved inwards shorter processes, and having rounded rather than triangular medial excision on posterior margin of vinculum, and the differently shaped aedeagus. The female genitalia resemble those of S. arenbergeri Povolný, 1973 and S. wiltshirei Povolný, 1966 , but differ in the strongly curved, more delicate signum and the prolonged corpus bursae.

Biology. Host-plant unknown. Adults occur from the end of April to July.

Distribution. China (Inner Mongolia, Xinjiang), SE Kazakhstan, Turkmenistan, Uzbekistan.

Etymology. The specific name is derived from the Latin fuscus – dark, brown, referring to the uniformly brown forewing.

Figures

FIGURES 1 – 8. Adults of Scrobipalpa spp. 1, S. fusca sp. n. (HT); 2, S. latiuncella sp. n. (HT); 3, S. flavimaculata sp. n. (HT); 4, S. sattleri (Lvovsky & Piskunov) 5, S. divergens Povolný (HT); 6, S. erichiodes sp. n. (HT); 7, S. nigrigrisea sp. n. (PT); 8, S. distincta sp. n. (HT).

FIGURES 17 – 24. Male genitalia of Scrobipalpa spp. 17, S. fusca sp. n. (PT, slide no. 222 / 07); 18, S. latiuncella sp. n. (HT, slide no. 277 / 08); 19, S. flavimaculata sp. n. (HT, slide no. SYW 05309); 20, S. sattleri Lvovsky & Piskunov (slide no. SYW 05192); 21, S. divergens Povolný (HT, slide no. 210 / 07); 22, S. erichiodes sp. n. (PT, slide no. 101 / 08); 23, S. erichiodes sp. n. (PT, slide no. 74 / 08); 24, S. nigrigrisea sp. n. (HT, slide no. 88 / 08).

FIGURES 41 – 43. Female genitalia of Scrobipalpa spp. 41, S. fusca sp. n. (PT, slide no. L 06059); 42, S. sattleri Lvovsky & Piskunov (slide no. L 06063); 43, S. erichiodes sp. n. (HT, slide no. 75 / 08).