Sierolomorpha sogdiana Lelej & Mokrousov

Lelej, Arkady S. & Mokrousov, Mikhail V., 2015, Sierolomorpha sogdiana spec. nov. from Central Asia, and a World catalogue of Sierolomorphidae (Hymenoptera), Zootaxa 4018 (4), pp. 593-599 : 593-595

Sierolomorpha sogdiana Lelej & Mokrousov , spec. nov.

( Figs 1–6 )

Sierolomorpha sp.: Mokrousov & Zryanin 2015: 38, ♀ Diagnosis. FEMALE. The female of the new species is similar to that of S. isis Nagy, 1971 , described from Samarkand, but differs from the latter by having the scape 2.0–2.1 × as long as pedicel (1.25 × as long as pedicel in S. isis ); by F3–F9 1.45–1.55 × as long as thick (2.0 × as long as thick in S. isis ), by malar space 0.7 × as long as width of scape (longer than width of scape in S. isis ); POL 1.25–1.28 × OOL (POL as OOL in S. isis ); parapsidal furrows located on posterior part of mesoscutum (located on anterior part of mesoscutum in S. isis ); S1 and S2 with deep constriction (weak constriction in S. isis ). MALE. Characters unknown.

Description. FEMALE. Body length 4.0– 5.5 mm (holotype 4.0 mm). Black, tibiae and wing venation castaneous; mandibles, flagellomeres, clypeus anteriorly and tarsi yellowish-brown. Body and legs with rare erect short pale setae, denser on S6 ventrally; setae of wing membrane dark.

Scape 2.0–2.1 × as long as pedicel. F3–F9 1.45–1.55 ×, F10 2.3 × as long as thick. Front rather shiny, punctures setiferous, small. Interorbital with short row of rather large punctures. Vertex polished with large setiferous and minute secondary punctures. Temples near eye shiny, posteriorly with distinct punctures. Head rounded, interorbital parallel. Malar space 0.7 × as long as width of scape. Ocelli small, POL 1.25–1.28 × OOL.

Mesosoma dorsally shiny, finely punctate, propodeal disc feebly alutaceous. Parapsidal furrows located on posterior part of mesoscutum, incomplete, weakly convergent anteriorly. Notauli incomplete, slightly longer than parapsidal furrows, distinctly divergent anteriorly. Pronotum and mesoscutellum laterally more deeply punctate. Tegula shiny, impunctate, axillar groove deep. Metapostnotum longitudinally striate. Propodeal disc without posterior transverse carina, laterally with well defined carinae; median longitudinal impression of disc short and superficially impressed, carinated laterally by two rudimentary keels, median longitudinal carina of declivity lacking. Posterior propodeal surface well carinated laterally, with median longitudinal impression, carinated laterally by two high carinae, laterad of them posterior surface transversely rugose. Mesopleuron shiny, with rather sparse scattered punctures.

Fore wing infuscated with apex paler, discolored along longitudinal furrows and cross-veins 2rs-m, 3rs-m, and 2m-cu. Hind wing long, touching apex of marginal cell of fore wing, without basal, but with six apical hamuli. Metacoxa with strong triangular tubercle dorsally. Meso- and metatibia dorsally with short spines. Femora flattened and widened, profemur curved outside. Protarsus without comb. Protibia with one, meso- and metatibia with two calcaria.

T1 with narrow apical striate band and wide triangular laterotergites, each of them overlaps apically one fourth of S1 width. T2 with narrower rectangular laterotergites which are rounded posterad. Laterotergites of T3–T6 triangular. S1 and S2 with deep constriction. S1 basally roof-like, feebly alutaceous, with median longitudinal carina bifurcated posterad; posterior half evidently longitudinally striate, posterior border medially widely emarginated and overlapping anterior declivity of S2, which is separated from remaining S2 by deep transverse groove. T2 basally with longitudinally striate band. T2 basolaterally with very small round black delicately aciculate areas ("felt line"), T2–T6 shiny. All sterna punctate like the terga, except S6 densely micropunctate. S6 rounded, dorsolaterally with long pale dense setae.

MALE. Unknown.

Material examined. Holotype, ♀, " Узбекистан, Кашкадарьинская обл[асть], Мубарекский р-н, 5 км С г. Мубарек, 13.IV.2014, Мокроусов / 39°18'31.3"N 65°08'19.9"E, 294 m, саксаульно-песч[аная] пуст[ыня]" [ Uzbekistan, Kashkadarya Prov., 5 km north Mubarek, sandy desert with Haloxylon persicum , edge of saline], [coll. Zoological Institute, Saint Petersburg, Russia]. Paratypes: Uzbekistan, Kashkadarya Prov.: [Huzar district, 5- 6 km south of Okkuduk, 38°25'28.0"N 65°45'30.9"E, 413 m, saline, 10.IV.2014, G. Anufriev, 1 ♀] [Mikhail Mokrousov collection, Nizhni Novgorod, Russia, MMC]; [5 km north Mubarek, 39°18'31.3"N 65°08'19.9"E, 294 m, sandy desert with Haloxylon persicum , edge of saline, 12.IV.2014, M. Mokrousov], 1♀ [coll. Institute of Biology and Soil Science, Vladivostok, Russia], same place, but 13.IV.2014, M. Mokrousov, 4 ♀ [MMC]; [Mirishkor district, Sechankul Lake, 38°54'09.7"N 64°43'28.0"E, 244 m, D. Potanin], 1 ♀ [MMC].

Distribution. Uzbekistan: Kashkadarya Prov.

Biology. The holotype and five paratypes were collected in Mubarek at the edge of a saline; the paratype from Okkuduk was collected on a saline ( Mokrousov & Zryanin 2015).

Etymology. The specific name originates from the ancient Sogdiana in Central Asia, with reference to the type locality. It is a noun in apposition.

Figures

FIGURES 1 – 6. Sierolomorpha sogdiana sp. nov., ♀, paratypes. 1. Habitus, lateral view; 2. Mesosoma, dorsal view; 3. Clypeus, frontal view; 4. Head, frontal view; 5. Propodeum, dorsoposterial view; 6. Metasomal segments 1 and 2, ventrolateral view.