Fannia aethiops Malloch, 1913

Wang, Ming-fu, Li, Kai & Zhang, Dong, 2011, Taxonomic review of the postica-group of Fannia Robineau-Desvoidy (Diptera, Fanniidae) from China, with the description of one new species, ZooKeys 112, pp. 1-19 : 7-8

Fannia aethiops Malloch, 1913 Figs 10-12

Fannia aethiops Malloch 1913: 628; Wang and Xue 1993: 458; Xue and Wang 1998: 818; Wang and Xue 2002: 55.

Description.

MALE. Body length 4.5 mm. Eye bare, facets slightly enlarged on anterior margin in upper part; fronto-orbital plate with golden-brown pruinosity in upper half, lower half of fronto-orbital plate and parafacial with densely grey pruinosity; the median part of frons about 1.5 times as wide as anterior ocellus, 3/5 as wide as postpedicel, frontal vitta black, linear in narrowest part, frontal setae 9, nearly reaching ocellar triangle, orbital setae absent; postocular setulae in one row, short, regularly placed; parafacial bare, about as wide as 2/5 of postpedicel width at middle; antenna black, postpedicel broad, about 1.5 times as long as wide, arista black, distinctly swollen in basal part, ciliated, the longest hairs slightly shorter than aristal base; epistoma not projecting beyond vibrissal angle, vibrissal angle behind frontal angle in profile; gena with thin greyish-brown pruinosity, gena and genal dilation with black hairs; genal height about 1/11 of eye height, upper margin of gena without upcurved setae; prementum slightly shining, without distinct pruinosity, its length 1.5 times as long as its width, palpus black, slightly swollen and depressed in apex, about as long as prementum. Thorax ground-colour black, scutum and scutellum with densely brown pruinosity, pleura with thin greyish-brown pruinosity, scutum without distinct stripe; presutural acr biserial, only prescutellar pairs slightly stout, the distance between two acr rows slightly narrower than the distance between acr row and dc row, dc 2+3, ia 0+2, pra 2, the anterior one about 1/2 of the length of posterior notopleural seta, notopleuron without setuaae; basisternum, proepisternum, anepimeron, meron and katepimeron bare; katepisternal setae 1:1, katepisternum without ventral spines; spiracles brown; calypters brownish-yellow, lower one slightly projecting beyond upper one. Wing brownish; veins brown, tegula dark brown, basicosta brownish-yellow, costal spine conspicuous, about as long as 2/3 of crossvein r-m; vein Sc curved bow-like; node of Rs bare on ventral and dorsal surfaces; vein R4+5 straight, veins R4+5 and M conspicuously close to each other distally; crossveins without obvious cloud; haltere yellowish-brown. Legs black; fore tibia without median p, fore first tarsomere with few longish basal setae on ventral surface; mid coxa without any hooked spines or spine-like setae on lower and outer margins, mid femur with sparse and long av row in basal half, becoming gradually shorter and denser towards apex, bare in subapical part, 3 or 4 short setae in apical part, pv row complete, long and stout, slightly biserial on middle part, p row fine and long, mid tibia distinctly swollen in distal half, with 1 ad and 1 pd in distal half, with numerous hairs on ventral surface, the longest one about 3/4 of mid tibia width, mid first tarsomere with clustered basal hairs on ventral surface; hind coxa bare on posterior surface, hind femur with 1 stout av and 2 or 3 pv in subapical part, hind tibia with 1 median av, 1 ad and 1 d. Abdomen long, depressed and flattened, ground-colour black, with densely greyish-brown pollinosity; syntergite 1+2 with broad black stripe on middle, tergites 3 and 4 with narrow black stripe on middle, tergite 5 without stripe; sternite 1 with 1or 2 long setae on each lateral margin.

Material examined.

China: Shanxi: 1 ♂, Ningwu, Mt. Luya, 38°43'48"N, 111°55'48"E, 12.VI.1987, Coll. M.F. Wang. Jilin: 1 ♂, Mt. Changbai, 42°19'48"N, 127°16'12"E, 22.VI.1980, Coll. Z.Y. Ma.

Distribution.

China (Shanxi, Jilin), North America, Europe.