Scrobipalpa ochrostigma, 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 : 23-24

Scrobipalpa ochrostigma sp. n.

( Figs. 12 , 34 , 53 )

Type material. Holotype, Ƥ, China: Mt. Xinglong, Yuzhong County (35°53' N, 104°06' E), Gansu Province, 2120 m, 4.viii.1993, leg. Houhun Li, genitalia slide no. 87/08. Paratype: 1 3, Dahua, Huangyuan County (36°43' N, 101°17' E), Qinghai Province 16.viii.1995, leg. Lanfang Zhu, genitalia slide no. L06039.

Description. Adult ( Fig. 12 ): Wingspan 13.5 mm. Head grey, frons off-white. Labial palpus recurved; segment 2 twice width of segment 3, underside and outer surface covered with white, black-tipped scales, inner surface white; segment 3 thin, acute, grey, inner surface with white medial ring. Antennal segments black, grey-ringed basally. Thorax and tegula grey mottled brown. Forewing light brown, posterior margin black from base to half length and in subapical area; narrow black strip along costal margin from base to twothirds; ochreous spot at base, at one-third and at two-thirds, respectively; cilia yellowish-grey. Hindwing and cilia grey.

Male genitalia ( Fig. 34 ): Uncus large, broad, more or less widened distally. Gnathos basally broad, distal portion narrow, slightly curved. Tegumen prolonged. Valva digitate, comparatively broad, distinctly shorter than uncus. Sacculus about one-fifth length of valva, moderately narrow, curved inwards. Paired processes on posterior margin of vinculum broad, sub-triangular, slightly curved outwards apically, about as long as length of sacculus; medial excision deep, V-shaped. Saccus narrow, apex slightly dilated, rounded. Aedeagus short, broadened basally, distal portion straight, with distinct apical cornutus.

Female genitalia ( Fig. 53 ): Papilla analis prolonged, sub-oval. Segment VIII quadrangular. Lobes of vaginal plates narrow, broadly separated, weakly sclerotized. Postvaginal plates weakly sclerotized. Apophysis anterioris about 1.5 length of segment VIII. Ductus bursae moderately narrow. Corpus bursae small, rounded, without signum.

Diagnosis. Scrobipalpa ochrostigma sp. n. is well recognizable externally by the yellowish-brown forewing with three distinct ochreous spots and black posterior margin. The male genitalia are characterized by the broad, prolonged uncus far exceeding the tip of the valva in combination with the broad paired processes on the posterior margin of vinculum and the relatively narrow sacculus. The female genitalia differ from most other Scrobipalpa species in the membranous, weakly sclerotized periostial lobes and the absence of signum. The last character has not been observed earlier in the genus Scrobipalpa .

Biology. Host-plant unknown. Adults occur in August at 2120 m altitude.

Distribution. China (Gansu, Qinghai).

Etymology. The specific name is derived from Greek ochra – ochreous, stigma – marks, in reference to the wing pattern.

Figures

FIGURES 9 – 16. Adults of Scrobipalpa spp. 9, S. nigripuncta sp. n. (HT); 10, S. strictella sp. n. (HT); 11, S. flavidinigra sp. n. (HT); 12, S. ochrostigma sp. n. (HT); 13, S. chinensis Povolný; 14, S. sinica sp. n. (PT); 15, S. flavinerva sp. n. (PT); 16, S. hoenei sp. n. (HT).

FIGURES 33 – 40. Male genitalia of Scrobipalpa spp. 33, S. reiprichi Povolný (slide no. L 06011); 34, S. ochrostigma sp. n. (PT, slide no. L 06039); 35, S. chinensis Povolný (slide no. 106 / 08); 36, S. sinica sp. n. (HT, slide no. 208 / 08); 37, S. sinica sp. n. (PT, slide no. L 07023); 38, S. flavinerva sp. n. (PT, slide no. 194 / 07); 39, S. hoenei sp. n. (HT, slide no. 91 / 08); 40, S. paradoxa Piskunov (slide no. L 07047).

FIGURES 50 – 53. Female genitalia of Scrobipalpa spp. 50, S. caryocoloides Povolný (slide no. L 06140); 51, S. sinica sp. n. (PT, slide no. 258 / 08); 52, S. chinensis Povolný (slide no. 98 / 08); 53, S. ochrostigma sp. n. (HT, slide no. 87 / 08).