Scrobipalpa buryatica BIDZILYA, HUEMER & ŠUMPICH, 2022, sp. nov.
Creators: name: BIDZILYA, OLEKSIY
name: HUEMER, PETER
name: ŠUMPICH, JAN
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Scrobipalpa
Scrobipalpa buryatica

description: Scrobipalpa buryatica sp. nov.
Figs 53, 54, 115, 116, 153
Type material. Holotype ♂, Russia, S-Buryatia, 51°11-13’N, 106°10-12’E, 700 m, Hamar-Daban Mts, Murtoi river, Gusinoe Ozero vill. 6 km NW, forest steppe, 19.vi.2002 (Nupponen) (gen. slide 378/16, OB) (Barcode TLMF Lep 28302) (NUPP). Paratypes: 1 ♀, same data as for holotype (gen. slide 379/16, OB) (Barcode TLMF Lep 28303); 1 ♂, same data but 4.vi.2006 (gen. slide 176/16, OB) (Barcode TLMF Lep28304) (all NUPP).
Diagnosis. A light, uniformly yellow to yellowish brown forewing with a darker costal margin is characteristic of the new species. Scrobipalpa spumata (Fig. 55) and uniformly coloured specimens of S. krasnogorka sp. nov. are nearly indistinguishable on the forewing pattern, but the head and labial palpus in S. buryatica sp. nov. are the palest among these three species, usually white with very indistinct dark markings. Scrobipalpa lutea has a similar wing pattern but differs in the presence of diffuse brown spots. The male genitalia of the new species can be recognised by the basally broad vincular process with a distinct, pointed, outwardly curved tip, and broad posteromedial emargination of the vinculum. Scrobipalpa pauperella (Heinemann, 1870), S. arenbergeri (Povolný, 1973) and S. spumata (Fig.106) are similar in the shape of the sacculus and vincular process but differ in the narrower posteromedial emargination of the vinculum. Scrobipalpa lutea has a broader sacculus (twice as broad as the cucullus, only slightly broader in S. buryatica sp. nov.), and a longer uncus. The lobes of the ventromedial depression with pointed and anteriorly outwardly curved tips that project far beyond the anterior margin of sternum VIII in combination with the weakly modified subgenital plates are characteristic of the female genitalia. Scrobipalpa spumata, S. krasnogorka sp. nov. and S. pauperella differ in the narrower subgenital plates with a stronger developed foam sculpture and microtrichia, and the lobes of the anteromedial depression turned outwardly anteriorly (straight in S. spumata (Fig. 152), and S. pauperella). Scrobipalpa lutea has segment VIII distinctly longer than broad (slightly longer than broad in S. buryatica sp. nov.), and the subgenital plates are of equal width (broadened posteriorly in S. buryatica sp. nov.). For the differences in the genitalia of both sexes from S. ferruginosa see above under that species.
Description. Adult (Figs 53, 54). Wingspan 12.0– 13.1 mm. Head white to yellowish white, slightly mixed with light brown on vertex, labial palpus upcurved, yellowish white, slightly mixed with light brown, inner surface white, scape light brown, flagellomeres yellow ringed with brown. Thorax and tegulae yellow to light brown. Forewing yellow mottled with light brown, costal margin and termen with distinct dark brown irroration, cilia yellow, browntipped. Hindwing grey with brown scales along veins and margins.
Variation. The female paratype has a darker forewing because of grey irroration along the veins.
Male genitalia (Figs 115, 116). Uncus 1.5 times as long as broad at base, gradually narrowed towards rounded posterior margin; gnathos short, weakly curved; tegumen broad, subtriangular, with broad anteromedial emargination; cucullus slender, weakly curved, slightly expanded apically, extending to top of uncus; inner margiun of sacculus narrow, outer margin weakly curved, with small pointed tip, about 1/3 length of cucullus; vinculum twice as broad as long, posterior margin with broad emargination, vincular process at base 1.5 times as broad as sacculus, distinctly narrowed posteriorly, with distinct pointed outwardly curved tip, extending to 3/4 length of sacculus; saccus subtriangular, gradually narrowed apically, extending far or slightly beyond top of pedunculus; distal portion of phallus straight, of about even width, as long as strongly inflated caecum, apex pointed, apical arm narrow, placed at right angles to phallus.
Female genitalia (Fig. 153). Papillae anales subovate, covered with short setae; apophyses posteriores 4 times as long as apophyses anteriores; segment VIII slightly broader than long, posterior margin of sternum VIII with broad triangular emargination, anterior margin strongly and broadly edged; subgenital plates gradually broadened posteriorly, from 1/4 (anteriorly) to 1/3 (posteriorly) width of sternum VIII, with patch of foam sculpture at base of apophyses anteriores; ventromedial depression narrow, covered with fine microtrichia, laterally broadly folded; lobes of anteromedial depression pointed and anteriorly outwardly curved, extending far beyond anterior edge of sternum VIII, with triangular anteromedial gap; apophyses anteriores slightly longer than segment VIII, straight; ductus bursae narrow posteriorly, then broad, colliculum short; corpus bursae weakly distinguished from ductus bursae, egg-shaped, signum on right side near entrance of corpus bursae, basal plate subrectangular with two teeth on inner margin, distal hook narrow, gradually curved, pointed.
Biology. Adults have been collected in June in forest-steppe habitats at an elevation of 700 m.
Molecular data. BIN: BOLD:AEC7223. The intraspecific average distance of the barcode region is 0% (n=3). The minimum distance to the nearest neighbour, S. karadaghi (Povolný, 2001) (BIN: BOLD:ADR5475), is 3.74% (p-dist) (Fig. 7).
Distribution. Russia: Buryatia.
Etymology. The species name reflects the distribution of the new species in the Buryatia Republic of Russia.
description: Published as part of BIDZILYA, OLEKSIY, HUEMER, PETER & ŠUMPICH, JAN, 2022, Taxonomy and faunistics of the genus Scrobipalpa Janse, 1951 (Lepidoptera, Gelechiidae) in southern Siberia, pp. 1-76 in Zootaxa 5218 (1) on pages 30-31, DOI: 10.11646/zootaxa.5218.1.1, http://zenodo.org/record/7409836