Geloemyia dorsocentralis ( Hering, 1940 ) Korneyev, 2015

Korneyev, V. A., 2015, Review Of The Genus Geloemyia (Diptera, Pyrgotidae), With Discussion Of Its Taxonomic Position, Vestnik Zoologii 49 (6), pp. 497-518 : 507-508

Geloemyia dorsocentralis ( Hering, 1940) , comb. n.

Hering, 1940: 291; Korneyev, 2004: 26; Korneyev, Nartshuk, 2004: 403 ( Adapsilia ); Soós, 1984: 36 ( Adapsila ).

M a t e r i a l. Type. Holotype ♂: “ Charbin 5.VII / Maoershan / W. Alin”, “Type” [red paper, printed], “ Adapsilia / dorsocentralis /m. Type / det. M. Hering 1940 ” ( ZMHB) . Paratype ♀: China, Heilongjiang: “ Chandaochezsy / 1.– 10.8.1937 ”, “Mandschukuo”, “ W. Alin ed.”, “ Adapsilia / dorsocentralis ♀. P. T. / Hering 1940 ”, “ Paratypus ” [red paper printed] ( SDEI) . Non-type. “Charbin Mandsch. / W. Alin VIII”, “ Adapsilia / dorsocentralis /m. ♀ Type / det. M. Hering 193-” ( MNKB) ; Russia: S of Primorskiy Kray, Gorno-Tayozhnoe [SE of Ussuriysk], light trap, 20.07.1994, ♀ (A. Belov) ( SIZK) ; Kamenushka 45 km SE of Ussuriysk, 29.07.1984, ♀ (Shatalkin) ( ZMUM) .

B r i e f r e d e s c r i p t i o n. Eye small, gena 0.8× as high as eye, without subocular spot, twice as high as length of flagellomere 1. Antenna scarcely longer than half face height, flagellomere 1 narrowed towards apex, rounded apically, 1.4× as long as pedicel. Face yellow, with antennal grooves reaching lower 1/4, and rather high, receding epistomal margin. Palpus moderately large, about as long and wide as antenna; labellum moderately developed. All head setae well-developed, except vte 0.3 as long as vti (Korneyev, 2004: fig. 4, 1). Thorax orange yellow, except postnotum brown, with 3 dc, 2 pairs of sctl, and well-developed prst sa, prsc ac and kepst) (Korneyev, 2004: fig. 4, 4). Prosternum with 4–5 long setulae on each side. Scutellum with 1–3 short setulae on each postero-lateral side. Wing as in fig. 4, 2. Costal vein conspicuously reaching apex of M. R 2+3 without spur vein, R 4+5 bare. Crossvein dm-cu 2.1.5–1.7× as long as cell r 4+ 5 in front of it. Coxae without thickened setae, but mid and hind coxae with numerous moderately fine and long black setulae. Femora yellow, setulose, with ventral row setae; fore femur (Korneyev, 2004: fig. 4, 3) with 2 rows of postero-dorsal setae in apical half, hind femur with 2 dorsal subapical setae; mid femur without bare area. Abdomen yellow, with moderately long black setulae. Male genitalia (in situ): epandrium oval, with elongate surstyli; proctiger dorsoventrally flattened, apically very slightly lobate, but not split (Korneyev, 2004: fig. 4, 5, 6). Oviscape (Korneyev, 2004: fig. 5, 1) wide and long, as long as mesonotum and 1.2–1.4× as long as preabdomen, directed postero-ventrally, with ventral apodeme rather short and weakly sclerotized, apical portion of oviscape with ventral lobe moderately wide and short, ending with flat triangular plate (Korneyev, 2004: fig. 5, 3), dorsal medial lobe absent, two wrinkled, taenium-like carinae in basal half of dorsal side of eversible membrane (modified taenia?) running into each other medially (Korneyev, 2004: fig. 5, 2), paired lateral lobes slightly shorter than ventral lobe, two rasper-like kidneyshaped or irregular-oval sclerites (modified ventral taeniae) between medial and lateral sclerites well separated from each other and oviscape (Korneyev, 2004: fig. 5, 1). Aculeus with preapical constriction, as in most species of Geloemyia (Korneyev, 2004: fig. 5, 4). Three separate spermathecae, one smaller than other two (Korneyev, 2004: fig. 5, 5)

Wing length 4.5–5.0 mm.

Remarks. This species shares the well-developed prsc sa and additional dorsocentral setae, shape of surstyli and aculeus with other species of Geloemyia and I place it to this genus; it differs from them by 2 or, bare R 4+5 (both characters also in G. wonjuensis ) and mid and hind femora setose ventrally, and oviscape strongly widened at base, as in many other Adapsiliina ; it is believed to be a basalmost taxon in the genus, quite close to outgroups.