Fannia menglaensis, Shuyu & Mingfu & Dong, 2021

Shuyu, Wei, Mingfu, Wang & Dong, Zhang, 2021, One new species of Fannia (Diptera, Fanniidae) from Yunnan, China with a key to the Fannia fuscinata - group in China, Biodiversity Data Journal 9, pp. 72444-72444 : 72444

Fannia menglaensis sp. n.

Materials

Type status: Holotype. Occurrence: recordedBy: D. Zhang & J. R. Zhang; individualID: the Museum of Beijing Forestry University, Beijing, China; sex: male; lifeStage: adult; Location: country: China; countryCode: CN; stateProvince: Yunnan; county: Xishuangbanna; municipality: Mengla; locality: Wild Elephant Valley ; verbatimLatitude: 22°10'22.68"N; verbatimLongitude: 100°51'29.39"E; Event: year: 2018; month: 2; day: 13; Record Level: basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: recordedBy: D. Zhang & J. R. Zhang; individualID: the Museum of Beijing Forestry University, Beijing, China; sex: female; lifeStage: adult; Location: country: China; countryCode: CN; stateProvince: Yunnan; county: Xishuangbanna; municipality: Mengla; locality: Wild Elephant Valley ; verbatimLatitude: 22°10'22.68"N; verbatimLongitude: 100°51'29.39"E; Event: year: 2018; month: 2; day: 13; Record Level: basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: recordedBy: D. Zhang & J. R. Zhang; individualID: the Museum of Beijing Forestry University, Beijing, China; sex: male; lifeStage: adult; Location: country: China; countryCode: CN; stateProvince: Yunnan; county: Xishuangbanna; municipality: Mengla; locality: Wild Elephant Valley ; verbatimLatitude: 22°10'22.68"N; verbatimLongitude: 100°51'29.39"E; Event: year: 2018; month: 2; day: 13; Record Level: basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: recordedBy: D. Zhang & J. R. Zhang; individualID: the Museum of Beijing Forestry University, Beijing, China; sex: male; lifeStage: adult; Location: country: China; countryCode: CN; stateProvince: Yunnan; county: Xishuangbanna; municipality: Mengla; locality: Wild Elephant Valley ; verbatimLatitude: 22°10'22.68"N; verbatimLongitude: 100°51'29.39"E; Event: year: 2018; month: 2; day: 13; Record Level: basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: recordedBy: D. Zhang & J. R. Zhang; individualID: the Museum of Beijing Forestry University, Beijing, China; sex: male; lifeStage: adult; Location: country: China; countryCode: CN; stateProvince: Yunnan; county: Xishuangbanna; municipality: Mengla; locality: Wild Elephant Valley ; verbatimLatitude: 22°10'22.68"N; verbatimLongitude: 100°51'29.39"E; Event: year: 2018; month: 2; day: 13; Record Level: basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: recordedBy: D. Zhang & J. R. Zhang; individualID: the Museum of Beijing Forestry University, Beijing, China; sex: male; lifeStage: adult; Location: country: China; countryCode: CN; stateProvince: Yunnan; county: Xishuangbanna; municipality: Mengla; locality: Wild Elephant Valley ; verbatimLatitude: 22°10'22.68"N; verbatimLongitude: 100°51'29.39"E; Event: year: 2018; month: 2; day: 13; Record Level: basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: recordedBy: D. Zhang & J. R. Zhang; individualID: the Museum of Beijing Forestry University, Beijing, China; sex: male; lifeStage: adult; Location: country: China; countryCode: CN; stateProvince: Yunnan; county: Xishuangbanna; municipality: Mengla; locality: Wild Elephant Valley ; verbatimLatitude: 22°10'22.68"N; verbatimLongitude: 100°51'29.39"E; Event: year: 2018; month: 2; day: 13; Record Level: basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: recordedBy: D. Zhang & J. R. Zhang; individualID: the Museum of Beijing Forestry University, Beijing, China; sex: male; lifeStage: adult; Location: country: China; countryCode: CN; stateProvince: Yunnan; county: Xishuangbanna; municipality: Mengla; locality: Wild Elephant Valley ; verbatimLatitude: 22°10'22.68"N; verbatimLongitude: 100°51'29.39"E; Event: year: 2018; month: 2; day: 13; Record Level: basisOfRecord: PreservedSpecimen

Description

Male: Body length 5.5-6.0 mm (Fig. 1 A). Eye bare. Fronto-orbital plate and parafacial with dense greyish pollinosity; frons almost as wide as the distance between two posterior ocelli at the narrowest point. Frontal vitta black, the narrowest point as 1/2 the width of fronto-orbital plate. Frontal setae twenty, nearly reaching ocellar triangle. Postocular setae in one row, hair-like, slender and forward, occipital setae behind the postocular setae on vertex in one shorter row. Parafacial bare and black, at middle as 1/2 the width of fronto-orbital plate. Antenna black, postpedicel 2.5x longer than wide, arista pubescent, swollen in basal part, the longest individual hair shorter than basal aristal width. Epistoma not projecting; subvibrissal setae in one row, laterally with one row of short setae. Genae with black setae, greyish pollinosity. Palpus black, claviform, longer than the length of prementum.

Thorax translucent yellow black, notum without distinct vitta; preustural acrostichal seta in four rows, only prescutellar pairs slightly stout, dorsocentrals 2+3, intra-alars 0+2, supra-alars 2, scutellum with widely spread fine setae in the dorsal surface, except median parts; notopleuron without seta. Katepisternal setae 1:1. Anterior spiracle brown. Calypters yellow, the lower one slightly projecting beyond the upper one.

Wings light brown; veins dark brown, tegula brown; basicosta brown, costal spine inconspicuous. Crossveins without obvious cloud; haltere yellow.

Knees yellow, other parts of legs black. Fore femur with complete posteroventral seta and posterodorsal seta rows, fore tibia with one apical posterior seta; mid-coxa without any hooked spines or spine-like setae on lower and outer margins; mid-femur with complete anteroventral seta and posteroventral seta rows, becoming gradually denser towards apex (Fig. 3 C), then with 8 thorn-like posterodorsal seta in apical part; mid-tibia with one anterodorsal seta, one subapical anteroventral seta and posteroventral seta (Fig. 3 D); mid first tarsomere without basal tooth-like spines on ventral surface; hind femur with a pre-apical anteroventral seta, without posterior seta and posteroventral seta rows; hind tibia with one submedian anteroventral seta, one submedian anterodorsal seta and one subapical dorsal seta.

Abdomen black, long and flattened. Each tergite with long lateral marginal setae. Syntergite 1+2 to tergite 4, each with one median inverted black triangular vitta (Fig. 1 B). Surstylus separated into two branches, anterior branch of surstylus with spiral and twist, with hook-like projection, then with some setae on turning point and apical, posterior branch of surstylus with hand-like projection (Fig. 4 A); cercus separated into six branches, anterior two branches bacilliform, profoundly curved inwards, with swollen marginals, median two branches bacilliform, with length as 1/2 the length of posterior branches, posterior two branches long and slender, with hook-like projection on its lower margin curved outwards. (Fig. 4 C).

Female: Body length 5.2 mm (Fig. 1 C). Eye bare. Fronto-orbital plate partly shining, with dense greyish pollinosity, parafacial with dense greyish pollinosity; frons at middle about 2/5 as wide as the distance between the width of eyes. Parafacial as 1/3 the width of fronto-orbital plate. Antenna black, postpedicel 2.0x longer than wide (Fig. 2 D). Legs entirely black. Other morphological characteristics are similar to those of the male.

Etymology

The specific epithet refers to the name of the type locality: Mengla.

Distribution

The species are at present known only from Yunnan, China.

Figures

Figure 1. Fannia menglaensis sp. nov. from Yunnan, China. A Male habitus, lateral view (BFU- 10730, holotype); B Male abdomen, dorsal view (BFU- 10730, holotype); C Female habitus, lateral view (BFU- 10730, paratype). Scale bars: A = 1.00 mm; B = 0.50 mm; C = 1.00 mm.

Figure 2. Fannia menglaensis sp. nov. from Yunnan, China. A Male head, lateral view (BFU- 10730, holotype); B Female head, lateral view (BFU- 10731, paratype); C Male head, anterior view (holotype, BFU- 10730); D Female head, anterior view (BFU- 10731, paratype). Scale bars: A - C = 1.00 mm; D = 0.50 mm.

Figure 3. A Sternite 5 of Fannia pileatus Xue et al. 2001, male, ventral view; B Sternite 5 of Fannia menglaensis sp. nov. from Yunnan, China, male, ventral view (BFU- 10732, paratype); C Mid-femur and tibia of Fannia menglaensis sp. nov. from Yunnan, China, male, anterior view (BFU- 10730, holotype); D Mid-femur of Fannia menglaensis sp. nov. from Yunnan, China, male, posteroventral view (BFU- 10730, holotype). Scale bars: B = 0.30 mm; C, D = 0.50 mm.

Figure 4. A Male terminalia of Fannia menglaensis sp. nov. from Yunnan, China, lateral view (BFU- 10732, paratype); B Male terminalia of F. pileatus Xue et al. 2001, lateral view; C Male terminalia of Fannia menglaensis sp. nov. from Yunnan, China, ventral view (BFU- 10732, paratype); D Male terminalia of F. pileatus Xue et al. 2001, ventral view. Scale bars: A = 0.30 mm; C = 0.30 mm.