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- Fannia.ringdahlana Collin 1939: 14; Nishida 1975: 378; Fan 1992: 216; Xue and Wang 1998: 815; Wang and Xue 2002: 57; Su and Wang 2004: 112; Wu and Wang 2002: 563; Wang et al. 2004: 34; Wang et al. 2006: 555.
MALE. Body length 4.0–4.8 mm. Eye with short and brownish hairs, facets slightly enlarged on anterior margin in upper part; fronto-orbital plate with brownish-grey pruinosity in upper half, lower half of fronto-orbital plate and parafacial with densely silvery-grey pruinosity; the median part of frons about 1.5 times as wide as anterior ocellus, 2/3 as wide as postpedicel, frontal vitta black, linear at middle part, frontal setae 11 or 12, nearly reaching ocellar triangle, orbital setae absent; postocular setulae in one row, 4 or 5 ones long and fine in vertex, anteriorly curved, others short, regularly placed; parafacial bare, about1/2 as wide as postpedicel width at middle part; antenna black, postpedicel about 1.5 times as long as wide, arista black, distinctly swollen in basal 1/3, ciliated, the longest hairs slightly shorter than aristal base; epistoma not projecting beyond vibrissal angle, vibrissal angle behind frontal angle in profile; gena and genal dilation with black hairs; genal height about 1/10 of eye height, upper margin of gena without upcurved setae; proboscis short, prementum slightly shining, with thin greyish-yellow pruinosity, its length 1.5 times as long as its width, palpus black, claviform, slightly longer than prementum. Thorax ground-colour black, with dark brown pruinosity, scutum without stripes; 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 3/5 of the length of posterior notopleural seta, notopleuron without setulae; basisternum, proepisternum, anepimeron, meron and katepimeron bare; katepisternal setae 1:1, katepisternum without ventral spines; spiracles dark brown; calypters dark brown, blackish-brown on the margin, lower one slightly projecting beyond upper one. Wing dark brown; veins dark brown, tegula black, basicosta dark brown, costal spine inconspicuous; vein Sc curved bow-like; node of Rs bare on ventral and dorsal surfaces; veins R4+5 and M conspicuously close to each other distally; crossveins without obvious cloud; haltere blackish-brown in base and apex, median part brown. Legs entirely black; fore tibia without ad and median p, fore first tarsomere with 2 or 3 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, comb-like in basal 1/3, pv row complete, long and stout, slightly biserial at middle part, 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 4/5 of mid tibia width, mid first tarsomere with basal tooth-like spines on ventral surface; hind coxa bare on posterior surface, hind femur with 2 av in subapical, 5 ad and 2 d in distal 1/3, p row seta-like in basal half, becoming gradually longer towards apex, 7 or 8 pv in distal 1/3, hind tibia with 1 av, 1 ad, 1 submedian d and 1 apical d, with numerous erect median setae on posterior surface. Abdomen long, depressed and flattened, ground-colour black, with densely brownish-grey pollinosity; syntergite 1+2 to tergite 4 each with a large triangular mark at middle, tergite 5 with a dark median stripe in basal half, the setae long and stout on the lateral margin of each tergite; sternite 1 with 1–3 fine and long setae on each lateral margin.
China: Yunnan: 5 ♂, Xianggelila, Bitahai, 27°48'00"N, 99°54'00"E, 3700m, 2.VII.2006, Coll. M.F. Wang; 1 ♂, same locality and time, Coll. B.F. Wang; 5 ♂, same locality and time, Coll. L. Chang; 1 ♂, Deqin, Mt. Meili, 28°29'24"N, 98°55'48"E, 4000–4200m, 2.VII.2006, Coll. Y. Wang. Shanxi: 1 ♂, Ningwu, Mt. Luya, 38°43'48"N, 111°55'48"E, 12.VI.1987, Coll. M.F. Wang. Jilin: 2 ♂, Mt. Changbai, 42°19'48"N, 127°16'12"E, 18.VII.1988; 2 ♂, Mt. Changbai, Xiaotianchi, 42°34'48"N, 128°18'00"E, 25.VII.1982, Coll. L.Y. Gao. Sichuan: 1 ♂, Daocheng, Kasi, 29°2'24"N, 100°18'36"E, 2750–3000m, 12.VII.2006, Coll. C.T. Zhang; 9 ♂, Jiuzaigou, 33°15'36"N, 103°54'36"E, 2800m, 3.VI.2006, Coll. D. Wang; 3 ♂, same locality, 2.VI.2006, Coll. D. Jing; 2 ♂, same locality, 1.VI.2006, Coll. Y. Zhu.
China (Shanxi, Jilin, Sichuan, Yunnan, Taiwan), Japan, Europe.
- Wang, M; Li, K; Zhang, D; 2011: Taxonomic review of the postica-group of Fannia Robineau-Desvoidy (Diptera, Fanniidae) from China, with the description of one new species ZooKeys, 112: 1-19. doi
- Collin J (1939) On various new or little known British Diptera, including several species bred from the nests of birds and mammals (Part.). Entomologist’s Monthly Magazine 75:134-144.
- Nishida K (1975) Six new and one newly recorded species of the genus Fannia (Diptera: Muscidae) from Taiwan, with a key to species. Kontyû 43 (3):364-380.
- Fan Z (1992) Key to the common flies of China, second edition. Science Press, Beijing, 992 pp.
- Xue W, Wang M (1998) Fanniidae. In: Xue W Chao C (Eds) Flies of China. Volume1. Liaoning Science and Technology Press, Shenyang, 809–835.
- Wang M, Xue W (2002) Taxonomic study on Fanniidae of China (Diptera: Cyclorrhapha). In: Li D Kang L Wu J (Eds) Innovation and Development in Entomology. Science and Technology Press of China, Beijing, 54–59.
- Su L, Wang M (2004) Studies on classification of the genus Fannia in China (Diptera: Fanniidae). Chinese Journal of Vector Biology and Control 15 (2):110-112.
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- Wang M, Xue W, Cao X (2004) Studies on the Family Fanniidae from the Subregion Loess Plateau of China (Diptera:Fanniidae). Chinese Journal of Vector Biology and Control 15 (1):33-35.
- Wang B, Wang M, Xue W (2006), Studies on fauna of Fanniidae in Dongbei region of China. Chinese Journal of Pest Control 22 (8):554-557.